What does an optometrist/optician look at in our eyes when we’re reading from the chart? In what way does that help them?

28 views
0

Coz they still need us to confirm if we can read or not with different lenses.

In: 3

They have the letters calibrated for distance and size in a way that 20-20 vision can reliably read ‘this’ line. So they have you read the best line you can and that corresponds to a certain level of vision and then they use a series of lenses to find the prescription that will get you back to 20-20, or what is considered normal.

Your eye’s health is examined with an ophthalmoscope and different types of light for viewing the retina and fundus.

This is a separate instrument than the photoropter, where you are asked which of the lens choices improves the test chart, and there is no “looking in your eyes”, only operating the machine.