Top
30
Doctor insights on: Vision

Share
Dr. Richard Bensinger
1,726 doctors shared insights

Vision (Overview)

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 doctor specializing in vision.


1

1
I've 20-60 vision. What is that?

I've 20-60 vision. What is that?

Lowered vision: If your 20/60 vision is best corrected, then there is some problem with your eye which limits the best acuity. If it is the best uncorrected, there may be some improvements even to normal with eyeglasses. The fraction 20/20 indicates the smallest print that can be seen at 20 feet while 20/60 means the normal can see them at 60 feet. ...Read more

Dr. Richard Bensinger
1,726 doctors shared insights

Vision (Overview)

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 doctor specializing in vision.


2

2
What causes sparkles in my vision?

What causes sparkles in my vision?

Retinal changes, etc: Sparkles termed photopsias, can occur from changes in the character of the vitreous in the back of the eye mostly due to aging, but can also be due to retinal detachments, and some inherited retinal changes. They can also be a thing that occurs with migraines. You should visit your ophthalmologist if you have these symptoms. ...Read more

3

3
Vision (Tip)

Poor vision is a frequent contrbutor to falls and fractures in the elderly. ...See more

4

4
Treating Poor Vision (Checklist)

Try a tablet or ebook reader for reading
Once
If you have cataracts, have them treated
Once
5

5
R= PL-0.50x180 L= +1.75-2.25x10 PD.66 what is my vision?

R= PL-0.50x180 L= +1.75-2.25x10 PD.66 what is my vision?

I don't know : You have myopic astigmatism in both eyes, left more than right. This alone doesn't answer what you are actually seeing (vision) in each eye. Your eye doc can measure that in the office. Good luck and I hope you're seeing well with your spectacle correction. ...Read more

6

6
How can I impair my vision?

How can I impair my vision?

Really?: I'm not advising 'ways' to harm vision. Your eyes are probably the most precious resource that you have, so protect & take care of them. If you are having vision problems, see an ophthalmologist for an evaluation. ...Read more

7

7
Vision (Tip)

Worried about falls? Get your vision checked. ...See more

8

8
What is your non-vision time?

What is your non-vision time?

?????: I have never heard of this term but I guess it refers to periods without visual input (ie when eye are closed or during sleep). ...Read more

9

9
Is 20/30 and 20/40 vision bad?

Is 20/30 and 20/40 vision bad?

Depends: These are levels of vision that still indicate good and useful vision. If you are used to 20/20 vision and you have a drop to 20/30 or 20/40 (uncorrectable) then it may seem bad to you. In my state of washington, the break point for a driver's license is a vision level of 20/40, so the state does not consider this 'bad'. ...Read more

10

10
Vision (Tip)

Only drive if your vision is good enough, but try doing as many activities as possible. ...See more

11

11
Are vision defects hereditary?

Depends on type: Color vision defect is usually hereditary but can be affected by various meds including some anti-inflammatories, cancer agents, blood pressure meds, pr even aftergastric bypass. In addition, recreational drugs can also be problematic. There are other eye diseases that can cause defects. ...Read more

12

12
What is cause of declining vision?

What is cause of declining vision?

Aging or disease: Difficult to answer without more signs and symptoms, test results. ...Read more

Dr. Jan Lei Iwata Dr. Iwata
1 other doctor agreed
13

13
Vision (Tip)

Don't or stop smokeling as this can reduce circulation to the eyes. ...See more

14

14
What makes my vision randomly blur?

What makes my vision randomly blur?

Dry?: A common cause of vision fluctuations is dry eyes. An easy test is to try otc artificial tears 4x/day and see if the vision improves. If it does, you should see an eye md for definitive treatment. ...Read more

15

15
Why is my vision going dark slowly?

PLEASE SEE AN EYE: Specialist as soon as possible. Many possibilities, some of them dangerous. ...Read more

Dr. Keshab Paudel Dr. Paudel
1 other doctor agreed
16

16
Vision (Tip)

Please don't drive in the evening as it will get even worse due to glare. ...See more

17

17
What causes my vision to become dim?

What causes my vision to become dim?

Many causes: Dim vision can be caused by cataracts, retinal problems or optic nerve issues. The key detail needed to better answer the question is how often/ when does it occur. If it is frequent or continuous, you should see an eye doctor soon. ...Read more

Dr. Jan Lei Iwata Dr. Iwata
1 other doctor agreed
19

19
Vision (Tip)

Improve your diet to be rich in anti-oxidants to support your eyes. ...See more

20

20
Why am i seeing prisms around my vision?

Why am i seeing prisms around my vision?

Migraine: You are probably experiencing occipital migraine. You can confirm this by seeing if the same things occurs in each eye when you cover one and then the other. These usually are short lasting (5 min to 2 hours) and cause no permanent changes. If this test does not work as I have indicated, then see your ophthalmologist for a better diagnosis. ...Read more

21

21
What is my vision if I wear -4.5 contacts?

What is my vision if I wear -4.5 contacts?

Hopefully 20/20: Are you asking what your vision would be if you were not wearing contact lenses or glasses? You would be around 20/100 to 20/200 based on my experience. This is assuming that you do see 20/20 with your -4.50 contact lenses. ...Read more

Dr. Jan Lei Iwata Dr. Iwata
1 other doctor agreed
22

22
Vision (Tip)

Make sure to have a diet rich in fruits and vegetables, especially those with luteins. ...See more

23

23
Why do humans need rods & cones for vision?

Pixels: Rods and cones are individual cells packed into the retina as a carpet of light receptive capacity. They sum their input to put together a nerve input to the brain which is the site of actual image formation. Rods have less tight packing but greater sensitivity. Cones are packed very tightly and perceive fine detail and color. You should love your rods and cones. ...Read more

24

24
Are there any way I could improve my vision?

Are there any way I could improve my vision?

Depends : It depends on what is the cause of poor vision, if it's cataract people can have cataract surgery. Please consult an optometrist or Opthalmologist and they should be able to give you appropriate advice. ...Read more

25

25
What causes bright squiggly lines in vision?

Migraine : Would be the most likely, but other possibilities exist as well, so you should see your ophthalmologist. ...Read more

26

26
What are the possible causes of halo vision?

Numerous: Migraine or glaucoma come to mind for me. Migraines are benign, but glaucoma can be serious and you can go blind. I'd see an eye physician soon! ...Read more

27

27
Why is it that my vision keeps going central?

Why is it that my vision keeps going central?

See below: Symptoms like these are best deterimed by a thorough evaluation by your physician. Based on his/her findings, a treatment plan can be developed to help you. ...Read more

28

28
What are the possible causes of shaky vision?

What are the possible causes of shaky vision?

No such thing: I have never heard of shaky vision. There is a condition called nystagmus where the eyes rotate or move back and forth when awake. ...Read more

29

29
What causes snowy vision and what makes it worse?

What causes snowy vision and what makes it worse?

Brain dysfunction: Snowy vision is caused by brain dysfunction in the right lingual gyrus. It is seen in patients with persistent migraine aura. It can also be seen with optic neuritis caused by MS. Often no obvious cause is identified. ...Read more

30

30
What are squiggly lines in my vision from time to time what isit?

Depends: If it is intermittent and moves, then it's likely a floater in the vitreous. If it doesn't move and is constant or increasing, then can be a problem in the retina. Sometimes a moving line of light can be representative of a cortical problem like an optic migraine. ...Read more