Top
20
Doctor insights on: What Do The Big And Small Letters Mean On An Eye Vision Chart

Share
1

1
What do the big and small letters mean on an eye vision chart?

What do the big and small letters mean on an eye vision chart?

Average vision: The eye chart compares your ability to see a specific size object at a determined distance (usually 20 feet) to the average person. If you can read the small letters at the 20/20 line, it means that you can see an object at 20 feet as well as the average person. If you have 20/30, it means that you have to be 20 feet from an object to see it when the average person can see it from 30 feet away. ...Read more

See 1 more doctor answer
Dr. Richard Bensinger
1,704 doctors shared insights

Vision (Definition)

Vision is a feature of a person's brain that allows him to see. He must have normal eyes, optic nerves (that stretch from the eyes to the back of his brain), and visual cortex (the vision center in the brain), in order to see properly. An ophthalmologist is a ...Read more


2

2
The cornea in my left eye won't focus. The pupil doesn't become big and small like it's supposed to. What could be wrong?

The cornea in my left eye won't focus. The pupil doesn't become big and small like it's supposed to. What could be wrong?

Immobile pupil: The pupil changes size related to light, dark, and focusing. This is from iris changes, as the pupil itself is merely an opening in the iris. A non-reactive pupil can definitely be a sign of a problem, including chemical related dilation or constriction of the pupil, a nerve paralysis, or an inflammatory problem of the eye such as iritis. This should be promptly evaluated by an ophthalmologist. ...Read more

3

3
After an eight ball hyphema surgery and treatment, the left iris and pupil of the patient has turned white with the vision not clear. What do we do?

After an eight ball hyphema surgery and treatment, the left iris and pupil of the patient  has turned white with the vision not clear. What do we do?

Cataract?: If the white area is only in the pupil, it's likely a traumatic cataract. Since there was trauma, the pupil is likely traumatized and dilated. If there is white covering both the iris and the pupil, its probably some sort of residual scarring as a result of the trauma. Both would need surgical correction. ...Read more

6

6
My right eye is blind and its color (blue) makes me shy as people are always staring. What kind of contact lens do I need to match with the other eye?

My right eye is blind and its color (blue) makes me shy as people are always staring. What kind of contact lens do I need to match with the other eye?

Several options: You can get ordinary color contact lenses which might match the normal eye. If that does not work, then there are custom lenses which can be an almost exact match. As a last resort a scleral shell can be created by an ocularist if there is room for it. ...Read more

7

7
My eye size different sudnly what can i do my city scan reports are normal one eye are small aid comparesion to other eye?

My eye size different sudnly what can i do my city scan reports are normal one eye are small aid comparesion to other eye?

Relax!: One side of your body is NOT the same as the other! Ever see what it looks like when each half is exactly mirrored???? Looks like TWO DIFFERENT PEOPLE! Hope this helps! Dr Z ...Read more

9

9
How can you treat a pair of eyes that is small on the left but big on the right without any eyelid surgery?

How can you treat a pair of eyes that is small on the left but big on the right without any eyelid surgery?

Need more info: I assume you are talking about asymmetry in the apertures (openings between the upper and lower lids.) this is usually due to a drooping eyelid on one side and a compensatory elevation of the lid on the other side. I am not aware of any treatment other than surgery. ...Read more

See 1 more doctor answer
10

10
I have white pus at the corner of my eye and my left eye is red. What does this mean? Thank you.

I have white pus at the corner of my eye and my left eye is red. What does this mean? Thank you.

Conjunctivitis: You have a conjunctivitis. If the pus production in the left eye is continuous, it is bacterial and you need treatment with antibiotic eyedrops. If it is watery, you need to use eyewash to keep it clean. It is self limiting. Use contagion precautions and don't share towels or pillows. Wash your hands. ...Read more

11

11
I had an eye exam the ophthalmologist said there are signs of lack of oxygen to the back of my eyes and a slight bleed. What does this mean?

I had an eye exam the ophthalmologist said there are signs of lack of oxygen to the back of my eyes and a slight bleed. What does this mean?

Bleed in eye: Could be he means you have an artery occlusion in retina. If you have diabetes, high blood pressure, or an inflammatory condition, this can happen: you are able to send us your fundus photo and notes for detailed explanation via Concierge. ...Read more

12

12
Small yellowish spot on white of eye right next to my pupil about 3 oclock position. No vision problems. Serious?

No: If no redness or pain or visual problem, this is not anything serious. It is probably a pinguecula, which is very common and not a source of concern, . ...Read more

See 1 more doctor answer
14

14
What if the whole eye is swollen... and eye Upper lid is puffy and looks full of fluid what do you do?

What if the whole eye is swollen... and eye Upper lid is puffy and looks full of fluid what do you do?

Get immediate help: You may have an allergic reaction. You didn't mention redness or pain so I don't suspect infection. Have a clinician examine you. An allergic reaction can be treated in the office; otherwise, if necessary, you can be referred to a specialist. ...Read more

See 1 more doctor answer
15

15
What willit mean when an optician tells you the fibres in your eye are spreading out?

What willit mean when an optician tells you the fibres in your eye are spreading out?

You need to...: Ask for a clarification. Also find out who is advising you. An optician is a person who makes and fits glasses. ...Read more

16

16
I know someone with yellow where the white of your eyes are and a white halo right above the pupil. What could that be?

Jaundice!: When there is a high level of blood bilirubin, then the sclera changes color to a yellow tone ( jaundice). The cornea which is a clear dome in front of the colored part of the (iris) acts as a sponge & picks up material such as cholesterol over the years and develops a whitish ring called "arcus sinilius" which is also benign. In a young person it may be sign of very high cholesterol. Get checke. ...Read more

See 1 more doctor answer
17

17
I get a blurry vision on one side of the eye sometimes. When looking at something the centre and right side of the eye vision is clear but a swimming ?

I get a blurry vision on one side of the eye sometimes. When looking at something the centre and right side of the eye vision is clear but a swimming ?

Blurry vision: Please see an eye doctor ASAP. There are a number of possible reasons for this and you want to catch this as early on as possible for some of them. Peace and good health. ...Read more

18

18
White spot in corner of my eye above tear duct, sensitive to touch, what is it and what do I need to do? Thanks!

White spot in corner of my eye above tear duct, sensitive to touch, what is it and what do I need to do? Thanks!

Eye infection: This might be an infection and should be checked by a doctor as soon as possible so it does not spread or get worse. ...Read more

19

19
I have a small white patch on the corner of my Iris. It does not affect my vision. Anyone have any insight to what this is?

I have a small white patch on the corner of my Iris. It does not affect my vision. Anyone have any insight to what this is?

Pterygium : A picture or certainly an exam will be most helpful. A whitish growth of tissue usually in the inner corner of the eye with subtle blood vessels probably is a pterygium. Although it appears in the iris, it is actually on the transparent cornea. Other possibilities exist and an exam is necessary. ...Read more