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It features a small 26mm diameter ring design which is outstanding for dynamic fundoscopy. Volk's exclusive Double Aspheric optical design expands the usable viewing field beyond that of competitive designs. The Volk 90 has good small pupil capabilities, making it ideal for a quick look at the posterior pole.
Volk's 60D, 78D and 90D fundus lenses have established slit lamp indirect ophthalmoscopy as a standard diagnostic procedure for comprehensive fundus evaluation. Along with the 20D, these are the lenses that put Volk on the map. Unique polynomial aspheric designs, exclusive to Volk, provide incomparably clear, wide angle fundus viewing ideal for static and dynamic fundoscopy. The Volk 60D, 78D and 90D lenses feature a symmetrical Double Aspheric optical design and can be held with either surface facing the patient.
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