Welcome to the message board forum for Krukenbergs Spindle and Pigment Dispersion Syndrome.
Here you will be able to post messages or reply to messages posted by other people... share your experiences of PDS or Krukenbergs.
Tracy's Message Board Forum
Welcome to the message board forum for Krukenbergs Spindle and Pigment Dispersion Syndrome. Here you will be able to post messages or reply to messages posted by other people... share your experiences of PDS or Krukenbergs. |
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| Viewing Page 1 of 1 (Total Posts: 3) |
| Author | Comment |
jo
 IP: 84.65.215.150 Jun 28, 07 - 3:34 PM |
eye exam.
another question, I have never asked, but always wanted to know....(why don't I ask these questions when in the opticians)?. What does va 6/6- mean?. Thank you anynoe who knows. jo. |
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Dave
IP: 193.62.251.16 Jun 29th, 2007 - 5:15 PM |
Re: eye exam.
A fraction like that is a way of writing the smallest size of letters that someone can see down a test chart. This is known as visual acuity. It is written as the test distance/size of letters. 6/6 is the metric version of 20/20. So meters rather than feet. The minus indicates that you didn't manage one letter on the size 6 line at 6 meters. 6/6 (or 20/20) is traditionally thought of as "normal" vision, but this is from a study in the mid 1800's. Nowadays we know that this is only really normal for people people in their 50's and that younger people can often get much better. However there is wide variety from person to person and day to day. Hope this helps. |
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jo
IP: 84.71.97.51 Jun 29th, 2007 - 6:52 PM |
Re: eye exam.
thank you Dave yet again a well understood answer. Now I can impress everyone when they ask me.TA |
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