Vision Simulator

20/200 Vision Simulator (Legal Blindness)

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

Drag the slider to compare 20/200 vision with 20/20 - without correction, most distance details are extremely blurred.

Near-legal-blindness simulation of 20/200 vision with heavy distance blur.

Status: 20/200

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

Drag slider to compare

With 20/200 vision, you see at 20 feet what someone with 20/20 sees at 200 feet.

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

Estimated Prescription Converter

20/200 Vision ≈ -3.00 to -5.00 Diopters

This is severe myopia or vision loss and requires professional correction.

A strong prescription can greatly improve daily function, but only a comprehensive eye exam can determine your exact diopters.

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Daily Life Impact Check

Driving

Corrective lenses required by law.

Reading

May need large print or zooming.

Pilot License

Legally Blind?

Boundary is 20/200.

20/200 vision is severe distance impairment and often meets the legal-blindness definition without correction. Glasses or contacts can still dramatically improve clarity, but an eye exam is essential.

20/200 on a Snellen chart means you see at 20 feet what a person with 20/20 eyesight could see at 200 feet.

Meaning: 20/200 is in the legal-blindness range in many regions.
What you'll notice: only large, high-contrast shapes stay clear.
Next step: an eye exam is essential to understand causes and options.

Only large shapes and high-contrast objects are clear at a distance.
Reading signs or recognizing faces from across a room is not possible unaided.
Low light makes distance vision feel even worse.

20/200 is extremely reduced distance vision. In the U.S., 20/200 is often used as a threshold for legal blindness, though definitions can vary. People at this level usually rely on strong correction and/or low-vision support.

20/200 is not adequate for driving without correction, and may still fall below requirements even with glasses. An eye exam is essential to understand the cause and options.

Severe myopia, advanced cataracts, macular degeneration, diabetic eye disease, or other retinal issues can all lead to 20/200. Professional evaluation is strongly recommended.

There is no exact one-to-one conversion between Snellen scores and glasses strength, but 20/200 often aligns with roughly -3.00 to -5.00 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.

Even with correction, some people benefit from low-vision strategies:

brighter lighting and higher contrast
screen magnification or larger print
using high-contrast settings outdoors

An eye exam is recommended if you notice:

you need to squint to read distance details
night driving feels stressful because of blur or glare
you avoid activities that rely on clear distance vision

People with 20/200 often notice problems in:

Recognizing faces or reading signs beyond a short distance.
Moving around safely in new environments.

The right prescription can usually improve distance clarity a lot.

Quick comparison to nearby levels:

Level	Compared to 20/200
20/100	Clearer than 20/200
20/200	Current level

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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Yes. In many regions, 20/200 or worse is the definition of legal blindness without correction.

Distant objects are extremely blurry. Faces, road signs, and screens across a room lose most detail without glasses.

Often yes. Glasses, contacts, or other treatments can restore much clearer distance vision, but you need an eye exam to find the right correction.

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