I'm a bit rusty.....getting old ya know, ......but I think s1 refers to the saggital depth of optical zone, and s2 is the saggital depth of the peripheral curve.
Type: Posts; User: uncut; Keyword(s):
I'm a bit rusty.....getting old ya know, ......but I think s1 refers to the saggital depth of optical zone, and s2 is the saggital depth of the peripheral curve.