Re: Time Perception and Acuity

On Oct 17, 12:34 am, Zetsu <absolutelyinvinci...@xxxxxxxxxxx> wrote:


'Reliable' is a stupid word to use because there is no such thing as
reliability except the knowledge that after a treatment the internal
reality of the vision which is a subjective impression, has been
reported as 'sharper'' by the patient. Even in your tests you have to
ask the person: "which one is better, first image or second?", because
at the end the only gain to the patient will be if he can actually see
through the glasses.

True, but first I can measure the dioptric power of the eye using an
instrument called a retinoscope. With reasonable accuracy, it
predicts how much "distortion" is present in the eye as compared to
the patient's subjective impression. So, there is a reliable
correlation between a refractive error and a perception of blur.


.

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