Hi Everyone,

for a prescription of OD -12.75 -1.75 x25 and OS -15.00 -2.00 x160 I went with a 1.67 index in a moderately small frame 44x29mm lens size and made out quite well [except for price!] with the actual lens thickness being OD 6.7 max 2.30 min OS 7.9 max 2.15 min.
Now however this prescription climbed to OD -13.50 -2.00 x25 OS -15.50 -200 x155 but the options on the market also increased, with 1.75 index approved.
SO my question to you - using these numbers can anyone calculate/project the actual thickness I can anticpate for every index from 1.67 thru 1.75 ??

LOOKing FORARD