Exam (elaborations)
ABO ADVANCED EXAM QUESTIONS AND ANSWERS 100% UPGRADED 2024
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Base Curve - Curvature of the front of the lens How is Cyl ground on a minus cyl lens? - Single curve on the front. Cyl ground on the back How is cyl ground on a plus cyl lens? - Flattest curve on the front. Old way of doing it do to cosmetics What is Vogels formula used for? - Creating be...
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