Binocular Field Defects

Hair Transplant Surgery – Pros & Cons
Depending on a number of critically important factors, hair transplant surgery can either be one of the best decisions you will ever make or among the worst. Today we’re going to discuss the pros and cons of surgical hair restoration, euphemistically called hair plugs or transplantation. In fact, the more accurate description is “autologous hair bearing skin transplantation”. This is because the actual procedure involves harvesting sections of skin from a hairy part of one’s scalp (donor) and moving it to a bald area (recipient) of the same person. Skin transplantation between anyone other than genetically-identical twins does not work.
The technique of moving hair bearing skin tissue grafts from one part of the scalp to another dates back at least 50 years. In the 1950′s a pioneering surgeon by the name of Dr. Norman Orentreich began to experiment with the idea on willing patients. Orentreich’s groundbreaking work demonstrated a concept that became known as donor dependance, or donor identity, that is to say that hair bearing skin grafts harvested from the zone of the scalp outside the pattern of loss continued to produce viable hair even though the grafts had been relocated into areas that had previously gone bald.
During the next two decades hair transplantation gradually evolved from a curiosity into a popular cosmetic procedure, primarily among balding men of late middle years. In the 1960′s and 1970′s practitioners including Dr. Emanuel Marritt in Colorado, Dr. Otar Norwood, Dr. Walter Unger showed that hair restoration could be feasible and cost effective. A standard of care was developed that, in experienced hands, allowed for reasonably consistent results.
At the time the most common technique involved the use of relatively large grafts (4mm — 5mm in diameter) that were removed individually from the donor site by round punches. This tended to leave the occipital scalp resembling a field of Swiss cheese and significantly limited the yield that was available for movement to the bald zones on top and in front of the patient’s scalp.
Over the course of multiple surgical sessions, grafts were placed into defects that had been created in the recipient zone (bald area) using slightly smaller punch tools. After healing the patient returned for follow up sessions where grafts were placed in and amongst the previous transplants. Because of the relative crudity of this technique, results were often quite apparent and the patient was left to walk around with a dolls hair like appearance, particularly noticeable at the frontal hair line, and especially on windy days. Such patients were usually quite limited in the manner they could style their hair and, because of the wasteful donor extraction method, many persons ran out of donor hair long before the process could be completed.
In the 1980′s hair restoration surgery gradually began to evolve from the use of larger punch grafts to smaller and smaller mini and micrografts. Minigrafts were used behind the hair line, while one and two hair micrografts were used to approximate a natural transition from forehead to hair. Donor site management also evolved from round punch extraction to strip harvesting — a far more efficient technique. Pioneers in this area were skilled surgical practitioners such as Dr. Dan Didocha, Dr. Martin Tessler, Dr. Robert Bernstein and others. The concept of creating a more natural appearance evolved still further in the 1990′s with the advent of follicular unit extraction (FUE), first proposed by the highly gifted Dr. Robert Bernstein, and described in the 1995 Bernstein and Rassman publication “Follicular Transplantation.”
The 1990′s also brought new tools into the mix, such as the introduction of binocular or ‘stereoscopic’ microdissection. Stereoscopic microdissection allowed the surgeon to clearly see where one hair follicle begins and another ends. As the 1990′s progressed, many transplant surgeons shifted away from the use of larger grafts in favor of one, two and three hair follicular units.
While highly useful in the hairline region, such ‘micrografts’ were not always optimal in recreating density behind the hairline. So even after multiple sessions, the final outcome of micrograft-only transplanted scalps tended to look thin and rather wispy. Perhaps of even greater concern, the dissection of a donor strip entirely into micrografts risked a significantly reduced conversion yield. Here’s why.
Let’s assume we are starting with two donor strips of hair bearing tissue from two similar patients. Two surgeons are each dissecting a single donor strip, but the first surgeon aims to dissect down into one and two hair micrografts alone, while the second surgeon dissects only enough micrografts to place in the hairline, leaving larger three, four, five and six hair grafts available for placement behind the hairline. At the beginning each donor strip contains 1,000 hairs. Both surgeons should theoretically end up with 1,000 viable hairs available for transplantation regardless of how the tissue was dissected. Unfortunately, the reality doesn’t quite work out that way.
Every time the donor tissue is cut the risk of transecting a follicle occurs. Transected hair follicles are known colloquially in the industry as Christmas trees — because they are hairs that lack viable roots. Basically, from a previously robust terminal structure, they either produce thin fine hair or none at all.
This is a problem for several reasons, but first and foremost, it is a problem because the act of hair transplantation does not ‘create’ new hair. The process simply relocates viable hair from the back of the scalp to the front.
And since there is a fixed supply of permanent donor hair which may not be sufficient to fill the area of demand, it is intrinsically counterproductive to reduce this limited supply via a technique know to engender relatively poor yield. The problem is solved by the careful use of FUE/micrografts in the recreated hairline and somewhat larger grafts behind the hairline. Refinement is thus achieved at the hairline with appropriate density behind the hairline zone. If either of these factors are missing from the equation the result is a dysaesthetic hair restoration. Either the outcome looks thin and fuzzy (micrografts only) or it looks doll-hair like (large grafts only). So now we can now begin to see why the size and strategic placement of each graft becomes a critically important consideration in hair transplant surgery.
Several other potential caveats to hair transplant surgery are graft compression, misdirection, misangulation, mishandled grafts and donor site damage. Graft compression occurs by trying to insert too large of a donor graft into too small of a recipient hole. If the donor graft is not carefully fitted to the recipient hole then the tissue and hair can literally get ‘squeezed together’.
To see how this works, extend the fingers from your left hand open and wrap the fingers from your right hand around the middle portion of your left hand. Just as your fingers get squeezed closer together, the hairs in a compressed graft end up closer together then they were intended by nature. This tufting lends an odd or unnatural appearance to the hair.
Misdirected grafts produce hair that ends up growing in a direction contrary to that which was intended. Again, this problem causes a weird, unnatural — and difficult to style — head of hair. Misangulation, somewhat similar to misdirection describes a misplaced graft that produces hair at an angle which does not correspond to the way scalp hair is supposed to grow. Again, the result is hair that just doesn’t look right no matter how it is combed.
Mishandling of grafts usually involves either transsecting a follicle (cutting off the root) or dessicating (allowing to dry out) the tissue. Graft mishandling typically occurs primarily in less than experienced surgical hands.
Donor site damage is metaphorically tantamount to decimating the entire Amazon rain forest in order to harvest a few dozen plants to use for decorating a neighborhood street. There are few things more aesthetically demoralizing then walking around with a partially-completed hair transplant — knowing that there isn’t enough donor hair available to finish the job because your donor site is exhausted.
Your donor hair is a precious resource. Treat it like solid gold. It’s all you’ve got and everything you’ve got to complete a process of surgical hair restoration. Don’t waste a single follicle.
So from all of this we can begin to appreciate some of the key pitfalls and risks of transplant surgery. As we see, the risks are principally aesthetic — meaning that the potential for damage is generally cosmetic, not medical. The scalp of most healthy people is extremely well vascularized and, in the setting of transplant surgery, scalp infection and/or other medically-relevant scalp complication is quite rare.
For those individuals considering transplant surgery it is crucial to equip oneself with good solid information. The internet is a good place to start. Visit trusted online resources. An excellent start would be a visit to the International Society of Hair Restoration Surgeons. Another reasonably objective resource is the hair transplant network. David Tse runs a highly educational website called Hairsite. There is always Medline which acts as a clearinghouse for all medical research, including surgical hair restoration. Those who publish on pubmed.com are often the highest caliber in their field.
Once you’ve gathered information from online resources you can move next to contacting the surgeon’s office itself. Take your time. Don’t let anyone talk you into surgery until you’re ready. Keep your money in your wallet and your donor hair behind your ears until you’re really prepared to commit both to the task at hand.
Talk to actual patients. If possible, visit with a restored patient or two in person. Many finished patients will not mind visiting with you if they’re happy with their outcome. Plan to have at least one personal consultation with each surgeon you’re considering. Don’t be afraid to travel. You needn’t go outside the United States for hair restoration. But if you live on the West Coast or East Coast you shouldn’t be limited to hair surgeons in your immediate vicinity. It’s your hair for goodness sake! Don’t let geography be a factor in the decision.
Ask each candidate surgeon pointed questions, such as: Can you show me pictures from patients who started with my degree of hair loss? How close to a full head of hair can I come? What will be the total cost for me to get there? Not just price per graft, or price per procedure, but the cost to get me from where I am now to where I want to be. How many surgeries are we talking about, and spread over what period of time? What is your policy for touch up work? What portion of your practice do you devote to corrective surgeries? Can I see photos of patients that you’ve corrected? These last two questions are highly useful because hair surgeons who are adept at correcting other people’s mistakes are generally less likely to blunder themselves.
There is a crucial take-home lesson from all of this. The single most important criterion in predicting a good outcome for hair transplant surgery is not the patient, but the surgeon. In surgical hair restoration, art is at least as important as science. You’ve access to genuine excellence in the hands of experts like Dr. Dan Didocha, Dr. Robert Bernstein, Dr. Bradley Wolf, Dr. Martin Tessler, Dr. Leonard Aronovitz and others. So for those seriously thinking about undergoing transplant surgery, the key is to arm yourself with knowledge first. Take your time. Be ‘patient’ before becoming anyone’s “patient”. Follow this advice and the odds are you will end up happier after your hair restoration then you are today.
About the Author
Ph.D., Human Physiology, 2000. Chief Scientific Officer, Advanced Restoration Technologies, DBA, HairGenesis®. Representative published research papers include: Prager N., Bickett K., French N., and Marcovici G., A Randomized, Double-Blind, Placebo-Controlled Trial to Determine the Effectiveness of Botanically Derived Inhibitors of 5 alpha-Reductase in the Treatment of Androgenetic Alopecia. J. Alt. & Comp. Med. 8: 143-152. 2002. Chittur, S., Parr, B., Marcovici, G., Inhibition of Inflammatory Gene Expression in Keratinocytes Using a Composition Containing Carnitine, Thioctic Acid and Saw Palmetto Extract (LSESr) [2009, under review]
Glaucoma Diagnosis Using The TrueField Analyzer
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Grafco Magni-Focuser Binocular Loupe With Auxiliary Lens, 6 Working Distance $42 Magni-Focuser Binocular Loupe Features:* 6″ Working Distance, 2″Working Distance with Auxiliary Lens, 5.25 X Power. * Same features as the standard model with auxiliary lens to augment magnification.* Additional lens swings up and down.* Ideal for work requiring varying degrees of magnification. Graham-Field has been supplying the healthcare market with one of the broadest selections of high quality healthcare products and services. All of their products have been designed with a single objective – to enhance the quality of life of the people that use their products and their caregivers. Their brands, such as Everest & Jennings and LaBac, Lumex, Labtron, Grafco, Smith & Davis and Simmons-offer the quality and value you’ve come to trust. |
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NatureView 8×42 NatureView Plus Binocular from Bushnell $159.91 While this may sound contradictory, it’s a common law of nature, as any birder or outdoor enthusiast can attest. So what to do? Pick up a pair of our NatureView® series binoculars. Each model has excellent optics for brighter images and better edge sharpness. Extended eye relief for lasting comfort over long observation periods. And ultra close-focus capabilities, providing amazing detail at short range. With these binoculars, observing nature comes naturally. The Bushnell® birding series of binoculars offers wildlife images like no other. Coated optics for brightness, clarity and clear identification. Superior color and transmission for spotting subtle field markings. A lightweight, balanced design with good eye relief for comfortable viewing. In any region, season or time of day, these optics will prove to be the best in wildlife observation. NatureView® Features: Bak-4 prisms for bright, clear, crisp viewing Fully multi-coated optics for superior light transmission and brightness Textured center focus knob for easy, precise adjustments 26 oz. Rugged, non-slip rubber armor absorbs shock PC-3® Phase Coated BaK-4 Roof Prisms: Every Legend TM roof prism model features fully multi-coated optics – which means that every lens surface is treated with a special anti-reflection multi-coating for optimum light transmission and a brighter, sharper, higher-contrast image. In addition =, they’re built with the finest barium crown BaK-4 glass roof prisms which are then phase corrected with our proprietary PC-3® phase-coating. This compensates for phase shifts of light rays to deliver absolutely crisp images with the highest possible resolution details. For information on how to choose the right binocular for you and in-depth technical information, please click here . |
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Riester SuperVu Galilean Binocular Loupe, 2.0x, 34cm Working Distance $423.95 Features of the Riester SuperVu Galilean Binocular Loupe: An enlarged view simplifies your work. What you can’t see you can’t work on. The advantages of Riester’s binocular loupes are obvious: improved working posture, reduced strain on the eyes and an even clearer view with K-LED lighting. Designed for comfort and performance. Patient comfort: more distance during treatment makes patients feel visibly better and more relaxed. Several magnfication grades: Riester loupes perform in accordance with your requirements. Multiple magnification levels enable you to see more, spot problems earlier and offer even higher levels of precision treatment. The true benefit of this system is its ease of use. Movement whilst maintaining focal clarity is possible due to superior depth of field. The lightweight aluminum bar with individual pupillary adjustment provides the mounted loupes with stability and optimal focal alignment, eliminating headache and eyestrain. Ideal for ocular and dental examinations as well as plastic surgey and veterinary professionals. |
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Riester SuperVu Galilean Binocular Loupe, 2.0x, 46cm Working Distance $423.95 Features of the Riester SuperVu Galilean Binocular Loupe: An enlarged view simplifies your work. What you can’t see you can’t work on. The advantages of Riester’s binocular loupes are obvious: improved working posture, reduced strain on the eyes and an even clearer view with K-LED lighting. Designed for comfort and performance. Patient comfort: more distance during treatment makes patients feel visibly better and more relaxed. Several magnfication grades: Riester loupes perform in accordance with your requirements. Multiple magnification levels enable you to see more, spot problems earlier and offer even higher levels of precision treatment. The true benefit of this system is its ease of use. Movement whilst maintaining focal clarity is possible due to superior depth of field. The lightweight aluminum bar with individual pupillary adjustment provides the mounted loupes with stability and optimal focal alignment, eliminating headache and eyestrain. Ideal for ocular and dental examinations as well as plastic surgey and veterinary professionals. |
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Riester SuperVu Galilean Binocular Loupe, 2.5x, 34cm Working Distance $423.95 Features of the Riester SuperVu Galilean Binocular Loupe: An enlarged view simplifies your work. What you can’t see you can’t work on. The advantages of Riester’s binocular loupes are obvious: improved working posture, reduced strain on the eyes and an even clearer view with K-LED lighting. Designed for comfort and performance. Patient comfort: more distance during treatment makes patients feel visibly better and more relaxed. Several magnfication grades: Riester loupes perform in accordance with your requirements. Multiple magnification levels enable you to see more, spot problems earlier and offer even higher levels of precision treatment. The true benefit of this system is its ease of use. Movement whilst maintaining focal clarity is possible due to superior depth of field. The lightweight aluminum bar with individual pupillary adjustment provides the mounted loupes with stability and optimal focal alignment, eliminating headache and eyestrain. Ideal for ocular and dental examinations as well as plastic surgey and veterinary professionals. |
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Riester SuperVu Galilean Binocular Loupe, 2.5x, 42cm Working Distance $423.95 Features of the Riester SuperVu Galilean Binocular Loupe: An enlarged view simplifies your work. What you can’t see you can’t work on. The advantages of Riester’s binocular loupes are obvious: improved working posture, reduced strain on the eyes and an even clearer view with K-LED lighting. Designed for comfort and performance. Patient comfort: more distance during treatment makes patients feel visibly better and more relaxed. Several magnfication grades: Riester loupes perform in accordance with your requirements. Multiple magnification levels enable you to see more, spot problems earlier and offer even higher levels of precision treatment. The true benefit of this system is its ease of use. Movement whilst maintaining focal clarity is possible due to superior depth of field. The lightweight aluminum bar with individual pupillary adjustment provides the mounted loupes with stability and optimal focal alignment, eliminating headache and eyestrain. Ideal for ocular and dental examinations as well as plastic surgey and veterinary professionals. |
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Riester SuperVu Galilean Binocular Loupe, 2.5x, 46cm Working Distance $423.95 Features of the Riester SuperVu Galilean Binocular Loupe: An enlarged view simplifies your work. What you can’t see you can’t work on. The advantages of Riester’s binocular loupes are obvious: improved working posture, reduced strain on the eyes and an even clearer view with K-LED lighting. Designed for comfort and performance. Patient comfort: more distance during treatment makes patients feel visibly better and more relaxed. Several magnfication grades: Riester loupes perform in accordance with your requirements. Multiple magnification levels enable you to see more, spot problems earlier and offer even higher levels of precision treatment. The true benefit of this system is its ease of use. Movement whilst maintaining focal clarity is possible due to superior depth of field. The lightweight aluminum bar with individual pupillary adjustment provides the mounted loupes with stability and optimal focal alignment, eliminating headache and eyestrain. Ideal for ocular and dental examinations as well as plastic surgey and veterinary professionals. |
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Riester SuperVu Galilean Binocular Loupe, 2.5x, 50cm Working Distance $423.95 Features of the Riester SuperVu Galilean Binocular Loupe: An enlarged view simplifies your work. What you can’t see you can’t work on. The advantages of Riester’s binocular loupes are obvious: improved working posture, reduced strain on the eyes and an even clearer view with K-LED lighting. Designed for comfort and performance. Patient comfort: more distance during treatment makes patients feel visibly better and more relaxed. Several magnfication grades: Riester loupes perform in accordance with your requirements. Multiple magnification levels enable you to see more, spot problems earlier and offer even higher levels of precision treatment. The true benefit of this system is its ease of use. Movement whilst maintaining focal clarity is possible due to superior depth of field. The lightweight aluminum bar with individual pupillary adjustment provides the mounted loupes with stability and optimal focal alignment, eliminating headache and eyestrain. Ideal for ocular and dental examinations as well as plastic surgey and veterinary professionals. |
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Riester SuperVu Galilean Binocular Loupe, 3.0x, 34cm Working Distance $453.21 Features of the Riester SuperVu Galilean Binocular Loupe: An enlarged view simplifies your work. What you can’t see you can’t work on. The advantages of Riester’s binocular loupes are obvious: improved working posture, reduced strain on the eyes and an even clearer view with K-LED lighting. Designed for comfort and performance. Patient comfort: more distance during treatment makes patients feel visibly better and more relaxed. Several magnfication grades: Riester loupes perform in accordance with your requirements. Multiple magnification levels enable you to see more, spot problems earlier and offer even higher levels of precision treatment. The true benefit of this system is its ease of use. Movement whilst maintaining focal clarity is possible due to superior depth of field. The lightweight aluminum bar with individual pupillary adjustment provides the mounted loupes with stability and optimal focal alignment, eliminating headache and eyestrain. Ideal for ocular and dental examinations as well as plastic surgey and veterinary professionals. |
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Riester SuperVu Galilean Binocular Loupe, 3.0x, 42cm Working Distance $453.21 Features of the Riester SuperVu Galilean Binocular Loupe: An enlarged view simplifies your work. What you can’t see you can’t work on. The advantages of Riester’s binocular loupes are obvious: improved working posture, reduced strain on the eyes and an even clearer view with K-LED lighting. Designed for comfort and performance. Patient comfort: more distance during treatment makes patients feel visibly better and more relaxed. Several magnfication grades: Riester loupes perform in accordance with your requirements. Multiple magnification levels enable you to see more, spot problems earlier and offer even higher levels of precision treatment. The true benefit of this system is its ease of use. Movement whilst maintaining focal clarity is possible due to superior depth of field. The lightweight aluminum bar with individual pupillary adjustment provides the mounted loupes with stability and optimal focal alignment, eliminating headache and eyestrain. Ideal for ocular and dental examinations as well as plastic surgey and veterinary professionals. |
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Riester SuperVu Galilean Binocular Loupe, 3.0x, 50cm Working Distance $453.21 Features of the Riester SuperVu Galilean Binocular Loupe: An enlarged view simplifies your work. What you can’t see you can’t work on. The advantages of Riester’s binocular loupes are obvious: improved working posture, reduced strain on the eyes and an even clearer view with K-LED lighting. Designed for comfort and performance. Patient comfort: more distance during treatment makes patients feel visibly better and more relaxed. Several magnfication grades: Riester loupes perform in accordance with your requirements. Multiple magnification levels enable you to see more, spot problems earlier and offer even higher levels of precision treatment. The true benefit of this system is its ease of use. Movement whilst maintaining focal clarity is possible due to superior depth of field. The lightweight aluminum bar with individual pupillary adjustment provides the mounted loupes with stability and optimal focal alignment, eliminating headache and eyestrain. Ideal for ocular and dental examinations as well as plastic surgey and veterinary professionals. |
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Tracker™ 8 x 21 mm Compact Sport Binocular $26.95 Carson’s Tracker TM is a full featured binocular with fully-coated lenses that reduce internal glare, reflection, and produce crisp, bright images. Special coatings provide unsurpassed infra-red and ultra-violet protection, reducing eye strain and improve image contrast. The Tracker TM has a center focus knob with an independent right diopter to adjust maximum focusing flexibility for all types of vision. Roll-down eyecups for eyeglass wearers. Magnification: 8 power Objective Lens Diameter: 21 mm Minimum Focusing Distance: 9 feet Prism Type: BK-7 porro Field of View: 379 feet at 1,000 yards Weight: 6.8 ounces / 170 grams Accessories: Pouch Case and Strap |
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Fisher Scientific Micromaster Inverted Microscopes with Infinity Optics, Binocular Body $4480 Micromaster Inverted Microscopes with Infinity Optics The latest addition to the Micromaster Series microscopes: new inverted microscopes with infinity corrected optics, brightfield and phase contrast illumination techniques. Infinity corrected optics with extra large 22mm field of view. Ergonomic, compact design. Bright 30w variable illumination. Components Optical System: infinity corrected optics. Head: binocular or trinocular. Eyepiece: plan 10X/22mm FN, high-eyepoint eyepieces. Objectives: infinity plan achromatic LWD objectives: 4X brightfield, 10X phase and 20X phase. Stage: 160W x 250mmL; height, 200mm from table. Illumination: Variable 6V/30w halogen bulb, precentered. Working Distance: With condenser, 72mm; without condenser, 150mm. |
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Vanguard 20-50 Full Size Binocular $57.99 VANGUARD 16X50 FULL SIZE BINOCULAR |
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Binocular, Epoch Full-Size 10.5×43 $756.99 BINOCULAR, EPOCH FULL-SIZE 10.5X43 |
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Riester SuperVu Hi-Res Galilean Binocular Loupe, 3.0x, 34cm Working Distance $769.75 Features of the Riester SuperVu Hi-Res Galilean Binocular Loupe: An enlarged view simplifies your work. What you can’t see you can’t work on. The advantages of Riester’s binocular loupes are obvious: improved working posture, reduced strain on the eyes and an even clearer view with K-LED lighting. Designed for comfort and performance. Patient comfort: more distance during treatment makes patients feel visibly better and more relaxed. Several magnfication grades: Riester loupes perform in accordance with your requirements. Multiple magnification levels enable you to see more, spot problems earlier and offer even higher levels of precision treatment. With this system, Riester provides a high resolution loupe, which far surpasses any previous standards. This 5-element loupe offers triple magnification with a 15% increased field of view and a visually flat field from edge to edge. Ideal for surgical assistants as well as ophthalmologists. |
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Riester SuperVu Hi-Res Galilean Binocular Loupe, 3.0x, 42cm Working Distance $769.75 Features of the Riester SuperVu Hi-Res Galilean Binocular Loupe: An enlarged view simplifies your work. What you can’t see you can’t work on. The advantages of Riester’s binocular loupes are obvious: improved working posture, reduced strain on the eyes and an even clearer view with K-LED lighting. Designed for comfort and performance. Patient comfort: more distance during treatment makes patients feel visibly better and more relaxed. Several magnfication grades: Riester loupes perform in accordance with your requirements. Multiple magnification levels enable you to see more, spot problems earlier and offer even higher levels of precision treatment. With this system, Riester provides a high resolution loupe, which far surpasses any previous standards. This 5-element loupe offers triple magnification with a 15% increased field of view and a visually flat field from edge to edge. Ideal for surgical assistants as well as ophthalmologists. |
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Riester SuperVu Hi-Res Galilean Binocular Loupe, 3.0x, 46cm Working Distance $769.75 Features of the Riester SuperVu Hi-Res Galilean Binocular Loupe: An enlarged view simplifies your work. What you can’t see you can’t work on. The advantages of Riester’s binocular loupes are obvious: improved working posture, reduced strain on the eyes and an even clearer view with K-LED lighting. Designed for comfort and performance. Patient comfort: more distance during treatment makes patients feel visibly better and more relaxed. Several magnfication grades: Riester loupes perform in accordance with your requirements. Multiple magnification levels enable you to see more, spot problems earlier and offer even higher levels of precision treatment. With this system, Riester provides a high resolution loupe, which far surpasses any previous standards. This 5-element loupe offers triple magnification with a 15% increased field of view and a visually flat field from edge to edge. Ideal for surgical assistants as well as ophthalmologists. |
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Riester SuperVu Hi-Res Galilean Binocular Loupe, 3.0x, 50cm Working Distance $769.75 Features of the Riester SuperVu Hi-Res Galilean Binocular Loupe: An enlarged view simplifies your work. What you can’t see you can’t work on. The advantages of Riester’s binocular loupes are obvious: improved working posture, reduced strain on the eyes and an even clearer view with K-LED lighting. Designed for comfort and performance. Patient comfort: more distance during treatment makes patients feel visibly better and more relaxed. Several magnfication grades: Riester loupes perform in accordance with your requirements. Multiple magnification levels enable you to see more, spot problems earlier and offer even higher levels of precision treatment. With this system, Riester provides a high resolution loupe, which far surpasses any previous standards. This 5-element loupe offers triple magnification with a 15% increased field of view and a visually flat field from edge to edge. Ideal for surgical assistants as well as ophthalmologists. |
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Nikon ProStaff Binocular Harness $20.99 4.80 oz 6121 9.60″ x 4.30″ x 2.60″ Nikon ProStaff Binocular Black Harness Nikon Nikon Corporation ProStaff Binocular Harness www.nikon.com |
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VWR Planachromatic Binocular Head Microscope, Brightfield Type $1813.22 VWR VistaVision Upright Compound Microscopes Microscopes feature exceptional contrast and resolution, brilliant uniform illumination, and highly durable mechanical elements. The viewing head is of the Siedentopf design with single diopter adjustment. The 6V, 20W Koehler illumination provides uniform intensity and the 1.25 Numerical Aperture (N.A.) Abbe condenser with iris diaphragm allows precise centering of the light path. Four-function focusing includes focus stop to protect slides/specimens and tension adjustment to prevent slippage. Microscopes with semi-planachromatic objectives are ideal for use in advanced educational settings. To reduce observation time, the parfocal and parcentered objectives maintain focus, the precisely graduated mechanical stage with ergonomic controls improves location accuracy, and high eye point eyepieces help zero in on the sample. Specimens and samples are doubly protected via the focus stop and spring-loaded retractable lenses (40x and 100x). Microscopes feature a heavy metal frame and an all-metal focusing mechanism for durability. Microscopes with planachromatic or achromatic objectives are ideal for research settings. Their large frames provide a stable, vibration-free base, facilitating viewing and image documentation. A large, coaxial mechanical stage with precise 2.0µm graduations, ultra-low controls, and a five-position reverse pitch objective turret make it easy to load slides and locate specimens. The planachromatic objectives provide sharp, flat images to the periphery of the field of view, minimizing spherical and chromatic aberrations. The achromatic objectives are ideal for samples like liquids and IC wafers that require a longer working distance. Microscopes are designed for long hours of observation without fatigue. All microscopes are supplied with 4x, 10x, 40xR, and 100xR (oil) objectives. The 40x and 100x oil objectives feature a retractable lens. The N.A. is 0.10 for 4x objectives, 0.25 for 10x objectives, and 0.65 for the 40xR and 100xR (oil) objectives. Working Distance: 4x Objective: 17 mm. 10x Objective: 8 mm. 40xR Objective: 0.4 mm. 100xR Objective: 0.25 mm. |
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Nikon Binocular Lens Cleaning Spray $3.99 8174NIK Binocular Lens Binocular Lens Cleaning Spray Cleaning Spray Nikon Nikon Corporation www.nikon.com |
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Nikon Binocular Lens Cleaning Kit $9.99 8176NIK Binocular Lens Binocular Lens Cleaning Kit Cleaning Kit Nikon Nikon Corporation www.nikon.com |
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Vanguard DR-8210 Binocular $16.99 10 mm 2 Year 21 mm 413 ft 413 ft @ 1000 meter 7.2° 7.41 oz 8x DR-8210 8 x 21 Binocular Neck Strap Carrying Pouch Binocular DR DR-8210 DR-8210 8 x 21 Binocular Roof Vanguard Vanguard(USA), Inc www.vanguardusa.com |
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Vanguard Ocean-1050WP Binocular $93.99 1 mm 10x 2.76 lb 367 50 mm Ocean-1050WP Binocular Floating neckstrap Boaters will really appreciate the Vanguard Ocean-1050WP binocular. This marine Binocular is completely waterproof and fog-proof, and is ideal for taking out on the water. The strong aluminum bodies are rubber armor covered, and include fully-coated optical glass. This binocular also come with a floating neckstrap that will protect it from sinking. You won’t want to go boating or fishing without it on board. Binocular Boating Fogproof Marine OCEAN-1050WP Ocean Ocean-1050WP Binocular Vanguard Vanguard(USA), Inc Waterproof www.vanguardusa.com |
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