Ever thought what the ophthalmic surgeon sees by asking you to read on that white box with black letters or in the mirror.

The thing we test is called the visual acuity.

It is the most important parameter of an ophthalmologist as the outcomes are highly measured by this one.

Frequently asked questions(FAQs)

Q.1 Why is there a mirror and why not see directly ?

Ans.It is because taking into account the laws of physics as ophthalmology,we need a particular distance,angle at which the light can be subtended to measure the visual acuity.

Q.2 What are the numbers written as result of visual acuity like -6/60 or 20/20?

And.That is the ophthalmologist checking your visual acuity and basically tells that at 6 metre distance from the patient ,how much is the patient able to see.

Q.3 What is that black box called?

Ans. It is the hallmark of visual examination for any ophthalmologist known as Snellen’s chart.