A -5 eye and a -7 eye are not much differently at risk, but both are significantly more at risk of retinal problems than a more normal, non-myopic eye. These are rare, though, so no cause for alarm.

What eyesight number is bad?

Generally, the further away from zero (+ or -), the worse the eyesight. A number between +/-. 025 to +/-2.00 is considered mild, a number between +/-2.25 to +/- 5.00 is considered moderate, and a number greater than +/- 5.00 is considered severe. Eye prescriptions can change over time.

Is +9 eyesight bad?

Serious defect (from +9,25 up) comes with impaired vision, but not only in the near but also for further objects. Farsightedness is often accompanied by purblindness and strabismus (squint).

Is +7.5 eye prescription bad?

If your number is between +0.25 and +2.00, you have mild farsightedness. If your number is between +2.25 and +5.00, you have moderate farsightedness. If your number is greater than +5.00, you have high farsightedness.

Is 5.5 eyesight legally blind?

Visual acuity less than 20/200 is considered legally blind, but to actually fit the definition, the person must not be able to attain 20/200 vision even with prescription eyewear. Many people who would be legally blind without eyewear can function well in everyday life with appropriate glasses or contact lenses.

What’s the worst your eyes can be?

20 Worst Things for Your Eyes

• Swimming in contact lenses. …
• Forgetting to clean your contacts. …
• Wearing daily contacts for weeks, months … …
• Buying contacts without a prescription. …
• Sleeping with your makeup on. …
• Using cosmetic products and procedures that aren't FDA-approved. …
• Skipping vaccines. …
• Missing routine eye exams.

What is the meaning of 6 by 6 vision?

6/6 vision describes being able to see at 6 metres what an average person can see at 6 metres. While 20/20 vision describes the same ability, but at 20 feet rather than 6 metres.

Is negative 4 eyesight bad?

This is a fairly mild amount of nearsightedness. If you are -4.25, that means you have 4 and 1/4 diopters of nearsightedness. This is more nearsighted than -1.00, and requires stronger (thicker) lenses. Similarly, +1.00 would be a small amount of farsightedness and +5 would be more.