Date of Award
Master of Science in Vision Science
Don C. West
This study examined the flexure of the Boston II gas-·permeable contact lens, while varying center thickness (.10mm, .14mm, .18mm) on with-the-rule corneas ranging from 1.12 to J.J1 D. All lenses were fit steeper than the flattest "K". It was found that contact lens with-the-rule: flexure occurred on all the eyes studied, but I was seen to be less as center thickness was increased. The base curve-cornea fitting relationship and the amount of corneal toricity was found to significantly affect the amount of contact lens flexure.
Ikeda, Julie A.; Ogata, Dale E.; and Yamada, Kenneth T., "A clinical evaluation of masking corneal astigmatism with Boston 2 gas-permeable contact lenses" (1984). College of Optometry. 691.