Home | Links | Contact Us | Top 50 | News | Bookmark
Find a drug:
A   B   C   D   E   F   G   H   I   J   K   L   M   N   O   P   Q   R   S   T   U   V   W   X   Y   Z   #  

Health Forum    Optical
Health Discussion Forum

 I wore my contacts to long and eye is sensitive and sore what can i do?
I wore my contacts to long and now one eye is senstive to light and sore. Can i do anything to help it?...

 How do you know if a contact lens falls out or is 'stuck in your eye'?
I have soft contacts. i can't see the contact at all but i feel like there's something there when i try to grasp the contact. do you think it fell out? i just all of a sudden couldn'...

 If you loose your glasses do you need a new prescription to order a new pair from the same place?
It has been a little over a year since the prescription was written. Will I need to visit the optometrist again inorder to replace my lost glasses or can I simply reorder my original glasses? (...

 Can contact lenses really improve your eyesight?
Or is it just a scam to get my mom to buy me contact lenses?

Yesterday my mom took me to the eye doctor because my eyes were red and infected. The doctor gave me eye drops. My mom told the ...

 is my eye color special at all?
ok i dont want any negative comments about my eye color. that will just make me feel terrible.
they're brown. but in the sunlight they're the exact color of my hair (i have red hair. ...

 How can this be prevented?? any experiences? ?
My eyes seems to be feeling weird these days. Everytime, I look towards the sun, street lights, or bright lights, I tend to have migrane? it doesnt hurt or I dont feel dizzy... but I tend to see ...

 If you were blind, how much would you be willing to pay, to be able to see again?

 Can you take this eye dominance test for me?
I'm doing a science fair project on ocular eye dominance, testing if being right-handed means you have a dominant right eye, or vice versa. Although I already know the answer, I need more ...

 i have an eye lash stuck in my eye... how can i get it out?

 My Pupil Keeps Getting Bigger And Smaller!!! help!!?
i noticed just before that one of my pupils was noticeably bigger than the other :O! then as i kept looking i realised the pupil keeps getting bigger, then smaller again! this is the pupil in my left ...

 Contact lenses: If I wear them for too long will they damage my eyes?
Your Question
Contact lenses: If I wear mine for too long will they damage my eyes?
I wear hard lenses and fell asleep with my lens in the other day, and had to keep it in when I got up in ...

 Do you need a prescription to get colored contacts?
Question explains itself..

Can you get colored contacts without a prescription?...

 operation tommorow....................??????
it is currently 2:06am i have not long turned 16 ......if you are wondering why i am up so late it is because i am watching wrestling anyway i have an op this morning i am not sure what time i think ...

 how old do you have to be to buy contact lenses?

 How is it possible to have purple eyes?
And why is it so uncommon? It's really weird
Additional Details
No, like born with real purple eyes, not ...

 Is my Glasses to Small?
Ok, i have these Transition glasses and they are rimless , and when i take them off they leave weird marks on the side of my head like, a inward feeling?


 What's normal for a first-time contact lens wearer?
I got fitted for my first-ever contact lenses today and I'm very excited. I know they're going to take time to get used to, but what types of problems/discomfort are normal the first time ...

 what color are your eyes, and do you need glasses or other corrective measures?
Dustin needs to know for his science project....

 anti glare glasses are not doing their job and what is anti glare how does it work?
i still see all the reflection and shine except its green ..but just as strong it didn't subside at all.. whats wrong..? was changing the lenses to regular ones a good decision . can the anti ...

 Hi guys, tell me how to improve eye vision?

20/20, what's it like?
im legally blind and my dominant eye is my right eye. i c 20/400 in my right and light in my left. well anyway, i never understood the concept of seeing 20/20. is it like u see the same object twice when u c it with both eyes? just curious...something i never understood.

thanks a million!!
Additional Details
well, i get the technical answer..the whole seeing wut others c at 20 feet away..i just dont understand wut it REALLY is like

thanks for the answers soo far!! :)


20/400, funny girl.


you just see one thing ,but very clear and colorful too=sorry to hear you are legally blind===the good thing in this is you don't have to look at junk laying around or someone getting sick,right

Paige m
20/20 means u have perfect vison

it's just that : to be able to see the smallest letters in the chart [

No, its just....Hmm.

How do I explain this?

You just see the one object how it really is. The color, the shape, the texture...Well, at least I think how it really is.

Girl, you've confused me.

everything just blends perfect.. nothing is blurry, and you have a wide range of view. you can see far and near and you have no troubles. :]

PC nonsense
20/20 is normal vision, you don't see things twice, just very clear. I used to have severe astigmatism, I had it corrected now I have very clear vision 20/15 both eyes. Don't believe you can't be helped the science of optics is getting more advanced day by day. Research and ask questions, you never know.

Paul MB
Visual acuity is how fine a detail you can make out. The human eye can see two separate lines, as two lines and not blurred into one line when the lines are a certain size. The most common way is to see lines that are about 1 degree wide, with a space between them of 1 degree.

If the lines are smaller, or closer, most people can't tell if it's one blurry line, or actually two separate lines.

The E on the 20/20 line, as others have explained in this answer portion, is normal. There are lots of people who see better than that. The ability of each eye to see well is a prerequisite for stereopsis or three dimensional vision. This is where you pour the coffee IN the cup rather than ON the table. But people do adjust. And humans do not have stereopsis beyond about 14 feet anyway as our eyes are too close together. Beyond that distance and it's the relationships of size, things being in front of or behind other things that can give some depth to the images.

I'd wonder if you are legally blind WITHOUT your glasses, or are you legally blind WITH your glasses? Legally blind is a measure of vision most would say was at a level of 20/200 or worse. It's not BLIND where you can't see anything, or barely see anything. And there are people with glaucoma that have very, very good central vision, but such narrow fields that it's like they're looking through straws or a double barrel shotgun. They're legally blind too, but in a different way.

So if you can see, WITH your glasses well enough to read, read the newspaper, bible, or other fine print, then you may not be legally blind in that eye. Since you didn't indicate how this was determined for you or what disease or problem you have, it's hard to address the issue.

If you see well enough to read with your glasses, and are not legally blind with your glasses, but are legally blind without your glasses, and you see at a level of 20/20 or 20/25 when corrected, .... well that's about how 'normal' people see.

I have 20/20 vision, almost. My eyes are almost perfect, I don't need to wear glasses, but when I drive at night I wear them. Anyway, I can see things with both eyes at the same time, but I don't see two of everything, instead, I see everything in 3-D. I don't know how to explain it, but I am sure that my range of vision is much better than yours, because I am seeing everything and then I can see movement out of the corner of my eyes too. The only way that I can understand how you see is to cover my left eye. When I do that, my field of vision is cut in half. I can't imagine what it is like to see like that all the time, just as it is hard for you to imagine how it is to see 20/20 all the time. I hope I have been able to describe it ok for you!

as far as I unerstand, normal vision which I guess is discussed as 20/20 here is about the ability see the depth of an object which is called 3D (binocular)

Just to demonstrate, try to close one of your eyes and see some object and see the same with both the eyes. With one eye you just see 2D. It could take time to realize the difference.

On a lighter note, when I read 20/20 I was about to post the rules of the new flavor of the game of cricket which is called 20/20 :)

I don't understand it ether. Sorry!

it means you see things much clearer kinda like if you had blurred vision and put on glasses that is like 20/20 you have perfect vision in both eyes. Nothing is blurred and you see things clearly.

Hi. It means that you see as clearly at 20 feet as most of us see at 20 feet. Considered 'normal'. But not perfect. My dad had 20/15 vision until he got older and with good glasses on I can usually read the 20/15 line on an eye chart.

You can read more on it here
You do see the object in both visual fields but you don't see a double image. Binocular disparity gives you the ability to sense depth and distance much better than you probably can. My Dad was legally blind too til he got the surgery. He just needs glasses for reading now.

Esh, I was 20/400 without correction my entire life...til laser surgery...

You do not see the same object twice with two eyes unless there is a condition called strabismus where the eyes are misaligned...sometimes causing double vision.

Imagine the blade of a pair of scissors...you can feel how sharp and clear it is...that's how 20/20 vision is...no fuzz, no blur, no colors fading into each other. It's more pinpoint.

You know how sharp things are about six inches in front of your nose?? You can see outlines of objects super close to your face....well, it's like that...only you can see that well further and further away. What looks like a green blob on top of a brown stick thing to you, and how I saw a tree when I was a child....you can actually see the limbs, branches, and individual leaves.

Does that help? It's so hard to explain, but the scissor edge is how sharp I see things now as compared to a month ago without glasses or contacts.

 Enter Your Message or Comment

User Name:  
User Email:   
Post a comment:

Large Text
Archive: All drugs - Links - Forum - Forum - Forum - Medical Topics
Drug3k does not provide medical advice, diagnosis or treatment. 0.024
Copyright (c) 2013 Drug3k Sunday, April 10, 2016
Terms of use - Privacy Policy