Vision Simulator

20/20 Vision Simulator (Normal Vision)

Interactive vision simulator — drag the slider to compare eyesight levels.

Use the slider to compare 20/20 vision to other levels - this is the baseline for normal eyesight.

Normal-clarity street view simulation for 20/20 vision.

Status: 20/20

20/20 (Perfect) 20/200 (Blind)

Drag slider to compare

With 20/20 vision, you see at 20 feet what someone with 20/20 sees at 20 feet.

This simulator is for educational purposes only and does not replace a professional eye exam.

Estimated Prescription Converter

20/20 Vision ≈ 0.00 Diopters

20/20 is normal vision; most people do not need distance correction.

Some people with 20/20 still benefit from glasses for astigmatism, digital eye strain, or specific tasks. Only an exam can determine if you need a prescription.

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Driving

Corrective lenses required by law.

Reading

May need large print or zooming.

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Legally Blind?

Boundary is 20/200.

20/20 visual acuity is considered normal distance vision. If you still feel blur or eye strain, it may be due to astigmatism or focusing issues - an eye exam can confirm.

20/20 on a Snellen chart means you see at 20 feet what a person with 20/20 eyesight could see at 20 feet.

Meaning: 20/20 is the normal eyesight baseline.
What you'll notice: everyday distance tasks look clear.
Next step: get an exam if glare, fatigue, or headaches persist.

Road signs and faces at typical distances look clear.
Classroom boards, screens, and TV are easy to see from normal positions.
Most outdoor activities feel sharp without squinting.

20/20 is the standard baseline for normal eyesight. Most people with 20/20 can handle everyday distance tasks comfortably. Still, symptoms like headaches, glare, or eye fatigue can happen even with a normal Snellen score.

20/20 meets normal driving standards. If night driving, glare, or fatigue feels worse than expected, you may still benefit from an eye exam to check contrast sensitivity, astigmatism, or dry eye.

20/20 usually indicates no meaningful distance refractive error. If you have 20/20 but still feel blur or discomfort, causes may include astigmatism, digital eye strain, or dry eye.

There is no exact one-to-one conversion between Snellen scores and glasses strength, but 20/20 often aligns with roughly 0.00 to 0.00 diopters for simple myopia.

Astigmatism or focusing issues can shift this range.
Treat any number here as a rough estimate only.

The right prescription can usually improve distance clarity significantly.

Most people with 20/20 do not need distance glasses.
If you wear glasses, it is often for mild astigmatism or comfort.

With 20/20, distance glasses are usually not needed.

Consider an eye exam if you have:

persistent eye strain or headaches
glare or halos at night
fluctuating blur, dryness, or focusing fatigue

These symptoms can relate to astigmatism, dry eye, or screen-related strain even when acuity is high.

Quick comparison to nearby levels:

Level	Compared to 20/20
20/15	Clearer than 20/20
20/20	Current level
20/25	More blur than 20/20

This simulator is for education only. Screen size, viewing distance, lighting, and eye health all affect what you see. If you are worried about your vision, please schedule a professional eye exam.

Last updated: December 12, 2025

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20/20 vision is the standard for normal visual acuity. It means you can see clearly at 20 feet what an average person should see at 20 feet.

It is considered normal, but not necessarily the sharpest possible. Some people have 20/15 or 20/10 vision, which is better than average.

You can have astigmatism, dry eyes, or eye strain even with normal acuity. Glasses may help comfort or specific tasks, and an eye exam will tell you what is best.

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