Pdf on mar 1, 2008, gitumoni sharma and others published commonly used diagnostic and laser. The first aspheric indirect ophthalmoscopy lens was. You can also send the lens to volk, see an authorized dealer or visit our booth at a tradeshow for onthespot tightening. Volk1 single use lenses offer the convenience and sterility assurance of a onetimeuse disposable ophthalmic lens made with the highest quality volk lens optics. Us5479222a indirect ophthalmoscopy lens system and. Volk lenses with technical specifications, application information and. Volk double aspheric lens introduction volks 60d,78d and 90d fundus lenses have establishes slit lamp indirect ophthalmoscopy as a standard diagnostic procedure for comprehensive fundus evaluation. Lenses clean and dry instantly, completely free of smudges, haze, lint and water spots, restoring light transmission to maximum levels for optimum.
These lenses offer unmatched imaging, focusing capability, and minimal glare for retinal and anterior segment examinations and laser treatments. Advanced double aspheric designs, exclusive to volk, provide clear fundus imaging and precise laser beam transmission. Volk is a company that produces these lenses, and such is the popularity of the manufacturer that fundus biomicroscopy lenses are now commonly referred to as volk lenses. The image below represents an actual side by side comparison of a volk 20d lens compared with a nonvolk lens over a 2mm grid. There has been considerable emphasis on the need for pupil dilation eg it is necessary to dilate with appropriate. Volk lenses all volk lenses are manufactured from highgrade glass material. Classic slit lamp lenses volk indirect aspherical slit lamp lens primary application. Miniaturized highresolution widefield contact lens for panretinal photocoagulation article pdf available in clinical ophthalmology auckland, n. Volk1 single use noncontact surgical bio lenses pdf. All volk lenses are optically engineered using proprietary computer ray tracing. All your needs from consulting room equipment to vision testing disposables and magnification solutions, designs for vision can help.
Delivering unmatched wide field imaging, the hr wide field lens improves upon earlier pan retinal contact lenses for visualization to the ora with no distortion. Which of the following lens do you guys recommend and why. Cleaning in a counter clock wise direction may loosen the glass element from the ring. Click your language beneath the category titles below to download pdfs of instructions for use. Vmlcase keep your personal lens sets together with our multilens case. Pdf commonly used diagnostic and laser lenses for retinal.
The invention is directed to an ophthalmoscopic or gonioscopic lens system as well as an adapter lens systems for use with such an associated lens apparatus. For decades, volk optical has provided discerning practitioners with the finest lenses for visualization and treatment of the eye. Volk diagnostic lenses volk volk g4 gonio laser lens designs for vision is a specialist provider of products to the ophthalmic and optometry sector for over 40 years. Reduce comfort based dropouts and pinpoint the most appropriate lens for each patient. Retina lens competitive comparison chart more ocular instruments advantages safer due to our superior optical design, we can use a larger spot size setting with our lens designs than volk. Only top quality glass is used in volk bio lenses, providing long lasting and superior optical quality. Download fulltext pdf are disposable and standard gonioscopy lenses comparable. A lens for use in indirect ophthalmoscopy having two functions. His aspheric design was refined and applied to a range of diagnostic lenses, creating the full line of examination and surgical lenses the company offers today. The super series lenses are volk s 2nd generation slit lamp lenses consisting of four lenses designed to deliver either wider field or higher magnification imaging than volk s classic series lenses.
Volk optical introduced the 60d lens in the early 1980s and, in subsequent years, extended the range of lenses for the slit lamp by adding additional powers. Volk diagnostic lenses volk 20d bio lens designs for vision is a specialist provider of products to the ophthalmic and optometry sector for over 40 years. This is a trial procedure in which several or even all 10 conoid lenses may be tried. I need to get volk lenses for lab and i was wondering if you guys could help me out. The cla platform includes both automated and manual versions.
In prescribing conoid lenses, the correc tion of ocular astigmatism is helpful when lowpower conoid lenses are used, such as 200 david volk a \ v. Clean your lens one side at a time in a clock wise direction. Instructions for use product information volk optical. Australian and new zealand distributors for all optometric and opthalmic supplies and equipment. A mild detergent and water is ideal to clean the surface. The indirect ophthalmoscopy lenses and the slit lamp biomicroscopy lenses are designed following a patented double aspheric design.
They employ improved designs, coupled with superior materials and coatings for the highest resolution imaging of any non contact lenses. Volk is known worldwide as the premier designer and manufacturer of the highest quality ophthalmic lenses. Ensure you get the highest quality lenses to deliver the highest resolution, distortionfree imaging. Volk diagnostic lenses volk superquad 160 lens designs for vision is a specialist provider of products to the ophthalmic and optometry sector for over 40 years. Volk diagnostic lenses volk digital high mag lens designs for vision is a specialist provider of products to the ophthalmic and optometry sector for over 40 years. The products represented on this page represent the best in class for each of our product categories. How volk eye check can improve fitting across all your ranges of contact lenses. Fundus biomicroscopy lenses are probably the most important tool that the majority of optometrists have at their disposal to screen and diagnose posterior eye pathology. Increase your use of higher margin specialty lenses by identifying candidate patients in seconds.
Get a multilens case free of charge if you are placing an order for a new volk lens. The indirect ophthalmoscopy lens of the invention for use in examination or laser treatment of a patients eye comprises a handheld, preset or fixed system having at least two lens elements, each having first and second surfaces. Most school bookstores have a special tool for tightening. Unfortunately, however, there still seems to be a general impression that volk lenses are to be regarded as a special technique, unsuitable for more routine optometric work. Volk precision optical lens cleaner wipes are highly absorbent, lintfree optical towelettes moistened to an exact saturation level with a unique combination of oil removers and cleaning agents. David volk pioneered a new type of aspheric lens design to reduce distortions in vision caused by the then common spherical lenses. The volk inview is an innovative new ophthalmic camera device able to capture wideangle digital colour images of the fundus using an apple iphone or ipod. Digital clear field indirect bio lens for highest resolution pan retinal examination. Volk digital series lenses provide the finest views for all examinations and imaging, enabling discernment of details previously unattainable at the slit lamp. Over time, indirect ophthalmoscopy has come to replace the previously widespread use of direct ophthalmoscopy, and with good reason. Do not use micro fiber clothes as they will remove. Volk 90d lens slit lamp lenses volk lenses products.
Tightening the lenses is always free of charge at volk optical. Examination of the retina by slit lamp and volk double aspheric lenses is called a bio microscopic indirect ophthalmoscope bio. Pdf miniaturized highresolution widefield contact lens for. Using a global network, designs for vision provides diagnostic and surgical products to a range of customers spanning across the healthcare sector. Volk optical receives presidential award for export success volk optical, inc. Pdf miniaturized highresolution widefield contact lens. Extreme wide field examination and laser prp treatment. Conoid ophthalmic lenses in legal blindness sciencedirect. Simply attach the volk inview to your iphone and then download the mobile app via the apple app store to your ios device. Volks digital lenses are the latest generation non contact lenses for examination at the slit lamp and bio. Quality of volkmanufactured optics deliver highresolution images in a sterile, onetimeuse design. When cleaning lenses, a good practice is to rinse under tap water to remove particulate which can scratch the lens coating and glass. Several developments occurred with the aspheric lens designs through the years, delivering far superior imaging for bio examinations. Most are fitted with a silicone stabilizing ring, eliminating the need for a suture ring or other lens holding device.
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