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A 35-year-old member asked:

what constitutes having poor vision?

3 doctor answers8 doctors weighed in
Dr. Richard Bensinger
Ophthalmology 52 years experience
Lowered acuity: Poor vision is vision less than you would like. There are legal standards for instance in most states 20/200 is the limit for legal blindness. Poor vision can also be from restriction of the field of vision (peripheral vision). Poor vision is indicated by the best you can do with the best correction.
Dr. Keshav Narain
Retinal Surgery 29 years experience
Less than 20/20: Using what is called a snellen acuity, both ophthalmologists and optometrists define normal vision as 20/20 in the us. This means that you can see the small letters on the eye chart at 20 feet equivalent. Less than 20/20, such as 20/40 means that you see at twenty feet what a perfectly sighted person could see at forty feet. The british use a 6 meter system so 6/6 is perfect vision.
Dr. Harvey Fishman
Ophthalmology 21 years experience
Decreased contrast: Decrease in contrast sensitivity (CS) with conditions like macular degeneration, diabetic retinopathy or even previous optic neuritis can also play a role in poor vision. A patient could have 20/20 vision but poor contrast and have visual symptoms.
Dr. Edward Stevenson
Ophthalmology 9 years experience
not seeing what you want/need to that you used to be able to see or the average healthy individual could see
May 18, 2014

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A 41-year-old member asked:

Is it possible to improve poor vision?

2 doctor answers3 doctors weighed in
Dr. Ari Weitzner
Ophthalmology 33 years experience
Nope...: ...After age of 12, vision is permanent. If you mean w/o glasses, sure- lasik or cataract surgery.
A 31-year-old member asked:

I have really poor vision, are there some prescriptions or contacts?

1 doctor answer3 doctors weighed in
Dr. Ilan Cohen
Ophthalmology 25 years experience
Depends: The cause of your decrease in vision needs to be identified before a solution can created. The most common cause of decreased vision is refractive error which can be corrected with glasses or contacts. If the decreased vision is from an eye health problem, other solutions maybe available. See your eye doctor.
A 48-year-old member asked:

Why do albinoes have such poor vision?

1 doctor answer6 doctors weighed in
Dr. Glenn Pomerance
Ophthalmology 47 years experience
Pigment disorder: As you would expect, albinism is caused by an abnormality in the pigmented tissues of the body. The eye has a pigmented layer, also abnormal in albinism, resulting in poor visual acuity, nystagmus, etc.
A 40-year-old member asked:

How to improve very poor vision? Any new treatments that are ready for mainstream use?

1 doctor answer1 doctor weighed in
Dr. Mitchell Vogel
Ophthalmology 30 years experience
Depends: Depending on your problem, many treatments are available. Get an eye exam and have a great day. Good luck.
A 46-year-old member asked:

Could my poor vision be causing me headaches?

3 doctor answers3 doctors weighed in
Dr. Brijesh Chandwani
Pain Management 11 years experience
Possibly: Strain on eyes can definitely cause headaches; if you have poor vision but you are addressing it with glasses then your headaches are probably not related to it. Contact an ophthalmologist.

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Last updated Jun 4, 2014

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