drbizzaro

Varilux/Essilor Advocate
10+ Year Member
Jul 13, 2004
485
0
Status
Optometrist
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