Question

an optician while testing the eye of a patient find its reason to be 6 /12 what it means

Answer 1

Dear student,
I myself am a doctor, so I'll be happy to answer this.

● Answer -
- While testing visual acuity we make the patient stand 6 m far from Jaeger's chart and ask him to read.
- Visual acuity of x/y means the patient can read something from distance y which normal person cam read at distance x.
- Here, 6/12 vision means patient can read something from 12 m which normal person cam read at 6 m.

Hope this helped...

Answer 2

Answer:

Visual acuity is the measurement of how clearly we see at a specific distance, usually 20 feet or 6 meters.

The acuity is usually presented as two numbers that indicate how close a person will need to be to an eye chart to see the letters or symbols clearly, compared to what a person with 'normal' vision would see.

The larger the denominator, the worse the eye sees, so a VA of 6/12 is half as good as 6/6.

Hence, 6/12 means the person can read the letters from 6 m which the normal eye can read from 12 m.