The principles of ophthalmic lenses jalie mohammed 9780900099205 books amazonca skip to main contentca hello select your address books hello sign in account lists account returns orders cart all best sellers gift ideas prime new releases . The principles of ophthalmic lenses mohammed jalie association of dispensing opticians 1972 eyeglasses 478 pages 1 review from inside the book what people are saying write a review user review flag as inappropriate very informative covers the subject in depth while providing working examples professor m jalie is the foremost expert on the subject of ophthalmic lenses . Principles of ophthalmic lenses 1 principles of ophthalmic lenses by m jalie print book english 2016 5th edition london association of dispensing opticians 2 the principles of ophthalmic lenses 2 the principles of ophthalmic lenses by m jalie association of british dispensing opticians print book english 2016 5th edition london association of british dispensing . Lenses are transparent objects that bend or refract light by virtue of the curvature of their outer surface although they may sometimes look flat all lenses have some convex or concave curvature which is what causes them to have an optical effect there are also things called flat lenses but that is an ill named complication