drbizzaro Varilux/Essilor Advocate 15+ Year Member Joined Jul 13, 2004 Messages 484 Reaction score 0 Points 0 Optometrist May 7, 2008 #1 Advertisement - Members don't see this ad for those of you who go to SVOSH missions or conduct any free eye exams, this method works well if you dont have a BIO handy: just use a direct opth. + 20D lens instead of the BIO+20D it works very well
Advertisement - Members don't see this ad for those of you who go to SVOSH missions or conduct any free eye exams, this method works well if you dont have a BIO handy: just use a direct opth. + 20D lens instead of the BIO+20D it works very well
E eyestrain Member 15+ Year Member Joined Sep 29, 2005 Messages 863 Reaction score 2 Points 4,531 Location South Dakota Optometrist May 7, 2008 #2 So my direct might serve a purpose after all?!