Doctor insights on:
Do Eyeglasses Really Help Bad Night Vision
Yes: At night, your pupils dilate. This (along with a few other changes that occur at night) may cause a temporary change in your glasses prescription leading to "night myopia" or slight nearsightedness at night. This makes many people feel as though they have "bad night vision" but really a small glasses prescription to be worn at night particularly while driving can help night vision. ...Read more
Yes: In some patients adding a negative 1/2 diopter improves their night vision. Also night vision goggles can improve your vision at night. Spending several minutes in the dark, adapts your rods so you can see better. Use a red light flashlight to avoid loosing your dark adaptation. Don't forget that wild cats have 6 times better night vision than humans, so be careful out there. :). ...Read more
Night vision: Is there a visual problem that causes you to ask this question? If so see an ophthalmologist. ...Read more
Less light scatter: Glare is caused by scattering of light before it enters the eye. Anti-glare lenses filter certain wave lengths of light, resulting in a more uniform beam of light entering the eye. Yellow or amber tints are best. ...Read more
I've been having diminished night vision and diminished vision during the day wearing sun glasses. I had lasik surgery 13 yrs ago. Any suggestions?
Glare coating: All computer manufacturers can recommend a glare reducing screen for your computer. ...Read more
Is this chronic?: If this is a longstanding condition (as far back as you can remember) it is likely permanent. If it started recently (over the last few months or a few years) there may be a cause that can be treated. I recommend having a dilated eye examination. ...Read more
I have very bad night vision, and anything that is lit. I've always been light sensitive. What could cause this?
Many causes!: Without an exam it is difficult to tell you what is going on. It sounds like you have always been this way, in which case it is 'normal for you'. Just like some people are cold sensitive (always need a sweater), some people are light sensitive. At the age of 48, you could also have early cataracts, which would decrease your night vision. ...Read more
Is it bad for your eyes to go back and forth from night vision to regular vision quite quickly for maybe an hour period?
Not bad for the eyes: There is no physiologic basis for the eyes to become strained or damaged in any way as a consequence of normal levels of light (not like a laser beam focused on the retina) alterations. I have no idea what this will do to your circadian rhythms though. Good luck with that one. But the retinas and corneas and lens will be fine. ...Read more
Get checked out: Although reversible loss of night vision may be associated with vitamin a deficiency, this is not likely in developed countries with normal diet. How long have you had poor night vision? Do you have congenital hearing loss? Loss of night vision may more likely be secondary to a variety of retinal dystrophies, including, most notably, retinitis pigmentosa (rp). When associated with congenital hearing loss, rp is part of usher’s syndrome. Symptoms are progressive nyctalopia (night vision loss) and constriction of visual fields (ie: inability to see immediate surroundings like stair rails or peripheral traffic when gazing forward). Other conditions may cause similar symptoms but are less common. Diagnosis is made by ophthalmologic examination including ophthalmoscopy, erg and visual field testing. Cataracts may occur and further impair vision. Unfortunately, there is presently no recommended therapy to arrest or cure these conditions but research is being conducted into the effects of neuroprotective agents as well as surgical remedies with stem cell and retinal pigment epithelial replacement. Please have your eyes dilated and examined. ...Read more
Is it bad that I need glasses but I don't want to wear them? What are the effects of that? Would it worsen my vision?
Hard to say: If both eyes are at a similar strength the brain would probably just give you fuzzy vision.Over time, all vision can gradually change anyway. If one eye is stronger than the other, or gives a sharper image, the brain may eventually turn off the vision in the weaker eye. Without vision, that eye may no longer track or line up straight with the other, leaving you cross or wall eyed. ...Read more
No...: ...But it may cause undue strain. Up until the 40s, the eyes can normally focus for near work. By the late 40s, near focus becomes difficult. Reading glasses are essentially magnifiers that help you focus up close. If you can focus up close on your own, there is no reason to use readers, and they can give you headaches. There is no danger, however, in using them. ...Read more
Shouldn't: All depends on what you define as perfect vision. If that has been assessed by an eye care provider, then reading glasses are merely extra magnification and shouldn't interfere with your vision. However, if you have any residual farsightedness or other type of prescription at distance, sometimes this can become more manifest, or noticeable, after wearing reading glasses. ...Read more
What do you suggest if I got my glasses today. My vision isn't terribly bad, they were mainly for them for a few days consistently to get my eyes acclamated, is this ok?
May need a check: Return to see you eye doctor If you are still having problems after a week. The prescription may be off or the glasses could have been made incorrectly. There is usually no charge for this and most optical places will remake a prescription at no charge if done with a certain time. Usually, 90 days. ...Read more
I woke up this morning with bad vision. Does this mean I need glasses or could it be health related?
Yes: It could be either. Visit your ophthalmologist to see (pun intended). ...Read more
My script is sph+0.50cyl-0.25 both eyes and axis is 096 in one and 100 in the other then it says add+1.50 how bad is my vision do I need glasses?
Minor distance power: Your distance correction is small and you could function well without correcting that. You did not state your age, but apparently are over 40 and need near magnification for presbyopia which is age related. You could get this over the counter. A bifocal could be made which would give you the convenience of having one eyeglass for all distances. ...Read more
Have 2 diff. Glasses- near and far glasses. Near vision getting just as bad as far vision. Optometrist says too young (20yr) for bifocals. Presbyopia?
Who is who in eyecar: Are you Hypermetropic? Write your Rx if you need a correct response. In Hypermetropia both near and far vision can change. Do you have astigmatism? Best advise see an Ophthalmologist. I wonder why you did not choose to go to an Ophthalmologist in the first place? Just asking. ...Read more
I having double vision in with my cable box and signs on the street while driving...Went to the eye doctors need glasses really bad?
See Eye MD: Double vision can be sign of very serious, even deadly, disorders. See an ophthalmologist soon. ...Read more
Lasik: os: +0.5x-0.5, od: 0x-0.25. Vision in right eye good in bright light, but bad in low light. Is that astig enough to cause this? Glasses needed?
Nah: That's a pretty darned good result.Get a more detailed answer ›