20/70 Vision Simulator

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

Compare 20/70 vision with 20/20 using the slider - distance detail drops a lot, and signs look fuzzy fast.

Strong distance-blur simulation of 20/70 vision on road signs.
Status: 20/70
20/20 (Perfect) 20/200 (Blind)

Drag slider to compare

With 20/70 vision, you see at 20 feet what someone with 20/20 sees at 70 feet.

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

Estimated Prescription Converter

20/70 Vision ≈ -1.50 to -2.25 Diopters

This is moderate myopia; distance tasks feel noticeably harder.

Glasses in this range can make a big difference for commuting, classrooms, and outdoor activities.

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Daily Life Impact Check

🚗 🔴 Restricted

Driving

Corrective lenses required by law.

📖 🟡 Difficult

Reading

May need large print or zooming.

✈️ 🔴 Disqualified

Pilot License

👁️ 🟢 No

Legally Blind?

Boundary is 20/200.

20/70 vision is a moderate distance impairment. Without glasses, driving and seeing far-away text are difficult, but correction usually restores safe clarity.

20/70 on a Snellen chart means you see at 20 feet what a person with 20/20 eyesight could see at 70 feet.

  • Meaning: 20/70 causes strong distance blur.
  • What you'll notice: you need to be much closer to see details.
  • Next step: a proper prescription is important for safety and comfort.
  • Signs and faces blur quickly beyond short distances.
  • You may need to sit closer to screens or move nearer to read text.
  • Night driving feels especially difficult without correction.

20/70 means distance detail drops a lot. Uncorrected vision at this level often interferes with school, work, and outdoor activities.

20/70 is typically below driving requirements without correction. If you drive, wearing the right prescription is essential for safety.

Moderate-to-severe myopia is most common, sometimes with astigmatism. Eye health checks matter to rule out cataracts or retinal causes.

There is no exact one-to-one conversion between Snellen scores and glasses strength, but 20/70 often aligns with roughly -1.50 to -2.25 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.

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 20/70 often notice problems in:

  • Reading a whiteboard or projector in meetings or classes.
  • Judging distance in sports or outdoor activities.

The right prescription can usually improve distance clarity a lot.

Quick comparison to nearby levels:

LevelCompared to 20/70
20/60Clearer than 20/70
20/70Current level
20/80More blur than 20/70

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

Common Questions about 20/70

20/70 means you must be 20 feet away to see what someone with 20/20 vision can see at 70 feet. It reflects moderate distance blur.

In most places, 20/70 without correction fails driving vision tests. Glasses or contacts are needed for legal and safe driving.

It is noticeably blurrier for distance - road signs and faces lose detail quickly. The simulator above lets you compare the difference directly.