Related Experiment Video
Updated: Aug 5, 2026

Dynamic Visual Tests to Identify and Quantify Visual Damage and Repair Following Demyelination in Optic Neuritis Patients
Published on: April 14, 2014
[Causes of blindness in Israel]
Abstract:
Of the world population, 38 million are blind and another 110 million are visually impaired. Even in the developed countries there are 3.5 million who are blind. This study of blindness in Israel is based on the National Blind Registry. At the end of 1998, 15,937 were registered as blind, 0.3% of the total population; 776 (5%) of them were 18 years old or younger; 6,426 (40%) 18-65 years old; and 8,735 (55%) 65 years or older. The leading causes of blindness in Israel are glaucoma (2,074, 13%), macular degeneration (1,954, 12%) and diabetes mellitus (1,680, 11%). Since glaucoma and diabetes, and to a lesser extent glaucoma, respond to treatment, blindness could have been avoided in most cases. National screening programs for early diagnosis and treatment of these diseases would reduce prevalence of the newly blind.
Related Concept Videos
Unrenewable Cells
Photoreceptors
The retina is composed of several layers and contains specialized cells called photoreceptors. The photoreceptors (rods and cones) change their membrane potential when stimulated by light energy. There are two types of photoreceptors—rods and cones—which differ in the shape of their outer...
Glaucoma: Overview
Focusing of Light in the Eye
Photoreceptors and Visual Pathways
Diabetic Retinopathy

