What is considered legally blind?

A fellow caregiver asked...

I'm 43 years old and have recently gotten glasses. The doctor said I am near-sighted and also have astigmatism. My vision is 20/50, 20/50. What does this mean and what is considered legally blind? Thank you, Teres

Expert Answer

Lylas Mogk, M.D. is an ophthalmologist and director of the Henry Ford Visual Rehabilitation and Research Center in Grosse Pointe and Livonia, Michigan, and the author of Macular Degeneration: The Complete Guide to Saving and Maximizing Your Sight.

The Social Security Administration defines "legally blind" as either visual acuity in both eyes of less than 20/100 or a horizontal visual field in both eyes of 20 degrees or less.