Aspheric Ophthalmic Lenses Combo Pack 20D 78D 90D

Aspheric Ophthalmic Lenses Combo Pack 20D 78D 90D    Available Color  : Black, Red, Golden, Blue, Green, Pink  20D aspheric lens is made out of glass provides high resolution and field of view on retinal image with binocular indirect ophthalmoscope. 78D provides and ideal combination of field and magnification, providing and extended working distance from cornea, it is made out of glass. 90D offers a wide-field fundus imaging out to and beyond the equator, ideal for posterior pole scanning, this is the non contact version lens, made out of glass.   These Lens are shipped with wooden safety case