8 doctors weighed in:
How are refractive errors detected and measured?
8 doctors weighed in

Dr. Robert Chang
Ophthalmology
3 doctors agree
In brief: Autorefractors
Retinoscopy, trial frame refractions, phoropter refractions, basically an eye exam at an optometrist or ophthalmologist office, maybe on an iphone in the future.

In brief: Autorefractors
Retinoscopy, trial frame refractions, phoropter refractions, basically an eye exam at an optometrist or ophthalmologist office, maybe on an iphone in the future.
Dr. Robert Chang
Dr. Robert Chang
Thank
Dr. David Kira
Ophthalmology
2 doctors agree
In brief: Eye exam
We use an instrument called a phoropter which contains many lenses and can generate many potential pairs of glasses prescriptions.
Sometimes the eyes need drops to get a good check for glasses. An ophthalmologist can help you out.

In brief: Eye exam
We use an instrument called a phoropter which contains many lenses and can generate many potential pairs of glasses prescriptions.
Sometimes the eyes need drops to get a good check for glasses. An ophthalmologist can help you out.
Dr. David Kira
Dr. David Kira
Thank
Dr. Christopher Hood
Ophthalmology
In brief: By eye doctor
An eye doctor will use a phoropter to rapidly change lenses in front of your eyes to determine your refractive error.

In brief: By eye doctor
An eye doctor will use a phoropter to rapidly change lenses in front of your eyes to determine your refractive error.
Dr. Christopher Hood
Dr. Christopher Hood
Thank
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