LASIK is a type of refractive eye surgery. In general, most people who have laser-assisted in situ keratomileusis (LASIK) eye surgery achieve 20/20 vision or better, which works well for most activities. But most people still eventually need glasses for driving at night or reading as they get older.

LASIK results and what to expect There is no set timeline for recovery. However, it can take about two months for your eyes to heal fully and your vision to be at its best. Most people have 20/30 or better the first day after the procedure.

LASIK may not give you perfect vision. The American Academy of Ophthalmology (AAO) reports that nine out of 10 patients achieve somewhere between 20/20 and 20/40 vision, but 20/40 vision may not be sharp enough for certain work or leisure activities. Even 20/20 does not always mean perfect vision.

LASIK will only remove glasses. So if your vision with best corrected glasses is 6/9 then you will get a vision of 6/9 without glasses after undergoing LASIK. Lasik allows you to see without glasses what you can see with glasses.

normal visual acuity Visual Acuity: What is 20/20 vision? 20/20 vision is a term used to express normal visual acuity (the clarity or sharpness of vision) measured at a distance of 20 feet. If you have 20/20 vision, you can see clearly at 20 feet what should normally be seen at that distance.

Some people have vision that's better than 20/20, like 20/15 vision or 20/10 vision. This means that you can see something 20 feet away (like a line on an eye chart) that most people can see when they're 15 feet away (20/15) or 10 feet away (20/10).

24 hours The first 24 hours after LASIK are important for the healing process. During this time, you should take it easy and not strain your eyes. Try to stay away from watching TV, looking at your phone or tablet, playing video games, or reading for at least the first day.

20/15 vision Some people have vision that's better than 20/20, like 20/15 vision or 20/10 vision. This means that you can see something 20 feet away (like a line on an eye chart) that most people can see when they're 15 feet away (20/15) or 10 feet away (20/10).

Keep reading to learn other ways you can improve your vision.

1. Get enough key vitamins and minerals.
2. Don't forget the carotenoids.
3. Stay fit.
4. Manage chronic conditions.
5. Wear protective eyewear.
6. That includes sunglasses.
7. Follow the 20-20-20 rule.
8. Quit smoking.

Similarly, 6/9 vision means a person can see at a distance of 9 meters what you see at 6 meters. You can have a better vision than 6/6, if your visual acuity test is for example 6/4 that means you can see at 4 meters what a person sees at 6 meters.

Last Updated Aug 15, 2023. A score of 20/20 on a visual acuity test means you can see things at 20 feet that most people can see at 20 feet. A score of 20/30 means you can see things at 20 feet most people can see at 30 feet.

Along with a new chart, Snellen came up with concept of 20/20 vision. The top number is how far you stand from the chart (20 feet), and the bottom is the distance at which someone with normal eyesight can read the smallest line you can see clearly.