ABO Exam Questions and Answers 100% Pass

ABO Exam Questions and Answers 100% Pass 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 into- OD: +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 Who is credited with making the first bifocals? Benjamin Franklin (1784) Who aroused the interest of physicians concerning the exam of