The 90D Non Contact Slit Lamp Lens is intended for general diagnosis and small pupil examinations, and features patented double aspheric glass optics that provides enhanced imaging of the retina. Order online from Volk today.
 
Features & Benefits:

Patented double aspheric glass optics provide enhanced imaging
Original 90D lens started the slit lamp fundus examination revolution
Small diameter ring is ideal for dynamic fundoscopy
Outstanding general diagnostic lens, even through small pupils