What does 20 70 eyesight look like?
The ratio measurement of vision describes visual acuity, or the sharpness of vision, at 20 feet from an object. For example, having 20/70 vision means that you must be at 20 feet to see what a person with normal vision can see at 70 feet.
What is 20 70 vision called?
20/70 to 20/160, this is considered moderate visual impairment, or moderate low vision. 20/200 or worse, this is considered severe visual impairment, or severe low vision. 20/500 to 20/1000, this is considered profound visual impairment or profound low vision.
Is minus 2.75 eyesight bad?
If you have a minus number, like -2.75, it means you’re short-sighted and find it more difficult to focus on distant objects. A plus number indicates long-sightedness, so objects up close appear more blurred or close vision is more tiring on the eyes.
What is normal eye number?
20/20
20/20 vision is normal vision acuity (the clarity or sharpness of vision) measured at a distance of 20 feet. If you have 20/20 vision, you can see clearly at 20 feet what should normally be seen at a distance.
What does it mean to have 20 / 70 vision?
A person with 20/70 vision sees at 20 feet away what most people would see if they were standing 70 feet away. A person with 20/70 vision can read only down to the third line on the Snellen chart, which represents low visual acuity compared with the norm.
Is it legal to be legally blind with 20 / 70 vision?
A person with 20/70 vision can read only down to the third line on the Snellen chart, which represents low visual acuity compared with the norm 2. Legal blindness is defined as 20/200 in the United States, All About Vision reports, so people with 20/70 vision are not considered legally blind 2. The Snellen test determines visual acuity only.
What does a visual acuity of 20 / 400 mean?
A visual acuity of 20/400 is very low functional vision. The lower your functional vision, the harder it will be to do daily activities and perform everyday tasks without low vision aids, specialized tools, or services.
What happens if your field of vision is 20 degrees or less?
If your field of vision is 20 degrees or less, you are considered legally blind. This constitutes tunnel vision, as you will have trouble seeing things that are not directly in front of you. Understanding the Differences Between 20/100, 20/200 & 20/400 Vision