Hello all. Does anyone know where i can find a listing for suggested MAXIMUM seg heights for PALs?
Hello all. Does anyone know where i can find a listing for suggested MAXIMUM seg heights for PALs?
Actually, while there are no listed maximums, you'll want to consider the intended function of the distance field of the lens. If, to fit a PAL on pupil, you measure at 30 high and the B is only 31, do you really think the patient will be happy driving? That said, they may REALLY like them for...hm...idunno...playing tiddly winks?
Either adjust the frame properly prior to measurement or choose a different frame that accommodates both regions intelligently.
k
Watch about going too big. See what happens when they begin falling down stairs.
There are currently 1 users browsing this thread. (0 members and 1 guests)
Bookmarks