ABO Exam Questions and Answers 2024 Complete 100% verified

ABO Exam Questions and Answers 2024 Complete 100% verified Change a bifocal Rx to a single vision Rx - Add the bifocal power to the sphere powers. OD: -0.50 OS: -0.25-0.25x172 Add: +1.75 Turns intoOD: +1.25 OS: +1.50-0.25x172 Anisometropia - There is a difference of 3 diopters between both eyes; when the vision of the eyes differs by a large margin. Antimetropia - Refers to Rx's that differ in sign. Ex. OD: +0.25 OS: -0.75 Simple Hyperopia - The Rx will be a + sphere Simple Myopia - The Rx will be - sphere Marcus Gunn - Tests to see if both pupils constrict when a light is shined in one eye. Tests for abnormalties in pupillary reaction. optotypes - letters on the Snellen Chart Who is said to be the pioneer lens designer (1268) - Roger Bacon Who is generally credited with the invention of spectacles? - Salvino d'Armati of Florence, Italy (1285) When were minus or concave lenses invented? - 16th century for correction of myopic eyes (nearsightedness) When were toric lenses invented and by whom? - 19th century by Suscipi