2 doctors weighed in:
According to the eye doctor I have about 20/30 vision. Is that good?
2 doctors weighed in

Dr. Glenn Pomerance
Ophthalmology
1 doctor agrees
In brief: Often confusing!!
20/30 means that 20 feet from the eye chart, your vision is as good as a normal person's standing 30 feet from the chart! a good rule of thumb is to use your vision measurement as a percentage of normal vision.
So 20/30 would be 66%, 20/40 equal to 50%, 20/20 equal 100%, etc! so your vision is less than perfect! good idea to have it checked out!

In brief: Often confusing!!
20/30 means that 20 feet from the eye chart, your vision is as good as a normal person's standing 30 feet from the chart! a good rule of thumb is to use your vision measurement as a percentage of normal vision.
So 20/30 would be 66%, 20/40 equal to 50%, 20/20 equal 100%, etc! so your vision is less than perfect! good idea to have it checked out!
Dr. Glenn Pomerance
Dr. Glenn Pomerance
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