5 doctors weighed in:
What are the tests for refractive error?
5 doctors weighed in

Dr. Ilan Cohen
Ophthalmology
3 doctors agree
In brief: Refraction
Refraction is the testing procedure which can determine refractive error.
This is the process by which the glasses prescription is determined.

In brief: Refraction
Refraction is the testing procedure which can determine refractive error.
This is the process by which the glasses prescription is determined.
Dr. Ilan Cohen
Dr. Ilan Cohen
Thank
Dr. Robert Chang
Ophthalmology
1 doctor agrees
In brief: Sharpening vision
An auto-refractor machine finds the correction needed to make a clear image on the retina, and this is your "refractive error" that can be corrected with a prescription.
People are now doing this with iphones for calculating sphere and cylinder.

In brief: Sharpening vision
An auto-refractor machine finds the correction needed to make a clear image on the retina, and this is your "refractive error" that can be corrected with a prescription.
People are now doing this with iphones for calculating sphere and cylinder.
Dr. Robert Chang
Dr. Robert Chang
Thank
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