The purpose of this blog is to provide a brief resume of
the types of spectacle lenses available to the patient
for better vision (visual needs).
Here we can discuss and share all about ophthalmic lenses, theories, individual findings, inventions, optical standards, tolerance, errors, complex optics and more..
Monday, July 18, 2011
Simplified way to find diameter for a single vision lens!
NB: In case of different PD in right and left, use mono ocular PD and double it instead of taking IPD.
At step 1, the measurement on the picture is not correct, as well. According the picture the size is 62, but not 61.
ReplyDeleteThanks for correcting my mistakes in the picturisation. I have changed the picture as per the correct measurements.
ReplyDeleteThis is a great article, I have been always to read something with specific tips! I will have to work on the time for scheduling my learning.
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