Anyone can view PRPTalk, PRP Placements and Eyetalk but you must be a College Member and logged in to the College website to post a reply or to start a new discussion
You are here: Forum Home > Students > PRPTalk > Cross cylinder
| Author | Subject: Cross cylinder |
|---|---|
 tiger
|
Cross cylinder
Jun 17, 2005 22:08:28 If px cannot see 6/12 at least to see the vierhoff rings after refraction and one hasn't got fan and block, I tend to use the large O on the 6/36 line on my chart and then do cross cyl from there. Any other ideas? |
|
palfi
|
RE: Cross cylinder
Jun 18, 2005 15:04:01 yep - experiment and try to find your own unique way. |
|
palfi
|
RE: Cross cylinder
Jun 18, 2005 15:06:56 if you look back - there is loads of stuff on the moon-optica chat board on subjective techniques- go back a few months. |