14D provides high magnification along with an optimized working distance from the cornea, 20D diagnostic/laser lenses is perfectly corrected for field curvature, astigmatic aberrations, 30D is designed to provide the practitioner a wide field of view with a short working distance. more.....
60D provides high magnification - making it ideal for detailed disc and macular viewing. 90D lens started the slit lamp examination revolution. With a small 26mm diameter dynamic fundoscopy. 78D is an excellent general diagnostic lens designed for use within the range of motion of all slit lamps. more.....