According to the American Foundation for the Blind, legally blind is not the same as completely blind, which is used to describe the inability to see anything with both eyes. Most people who are legally blind have some eyesight. Basically, if it`s at least 20/70, can`t be corrected — even with touches, glasses, or surgery — and interferes with your daily activities, it can legally be considered a “visual impairment.” Total blindness is the complete absence of light perception and shape perception and is recorded as “NLP”, an abbreviation for “no light perception”. About 80% of blind people have residual vision. It can be difficult to understand how a person with a particular eye condition can see some things while not seeing others. While some people lose a lot of vision in a short time, others slowly lose vision. Many diseases that cause blindness begin to affect a certain part of vision and then progress to remove more vision. For example, macular degeneration initially affects a person`s central vision (the vision that makes us see straight ahead). Visual examples of what individuals might see if they have diseases such as macular degeneration, glaucoma, cataracts, diabetic retinopathy, and retinitis pigmentosa can be found on the National Eye Institute`s website at www.nei.nih.gov. What does it mean to be legally blind? The definition of legal blindness was developed as a guideline to help people receive government support, such as Social Security disability benefits. The Department of Motor Vehicles also uses the definition to measure visibility and protect our roads from drivers who have difficulty seeing.
“Legal blindness” is a definition used by the U.S. government to determine eligibility for job training, rehabilitation, education, disability benefits, equipment for the visually impaired, and tax exemption programs. It`s not a functional definition of low vision and doesn`t tell us much about what a person can and can`t see. Part 1 of the American definition of right blindness says this about visual acuity: Being legally blind affects your eyesight, but that doesn`t have to stop you from living a fulfilling life. An ophthalmologist will measure visual acuity and visual field to determine if a person is legally blind. To be legally blind, you must have a visual acuity of 20/200. This means that even with glasses or contact lenses, you can only read the first letter at the top of the Snellen diagram, if at all. You can also be legally blind if you can see, but only in a very small window in your eye. Essentially, even if you can see, if you can`t see enough to function regularly, you can probably be considered legally blind. The Iowa Department for the Blind also serves people who are functionally blind. A person is functionally blind when they have to use so many alternative techniques to perform tasks that are normally performed with vision that their daily lifestyle is significantly altered.
These alternative techniques could include reading a newspaper while listening to the phone or using Braille to read a book. To be legally blind, you must meet one of two criteria: visual acuity (visual acuity) and field of vision (the full range of what you can see without moving your eyes). First, what does it mean to be “legally blind”? In most states, if you have less than 20/200 visual acuity that cannot be corrected with glasses/contact lenses, you are legally considered “severely visually impaired” (which was called “legally blind”). But the trick here is not what you see “naturally” (with the naked eye), but how well you see with your glasses or contact lenses. Despite such a high correction of myopic lens, if one or both of your eyes can see 20/40 or better, you are not “legally blind”. However, it`s easy to see how someone might feel this way when you`ve lost glasses somewhere! Being considered legally blind means you can`t drive in any state. Talk to your doctor about your concerns. We have all heard the term “legally blind,” but what does that really mean? How is it different from complete blindness and who is considered legally blind? Eye trauma or injury and genetic diseases, such as Usher syndrome, can also lead to legal blindness.