ABO Exam Questions and Answers 100% Correct

Change a bifocal Rx to a single vision RxAdd 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 AnisometropiaThere is a difference of 3 diopters between both eyes; when the vision of the eyes differs by a large margin. AntimetropiaRefers to Rx's that differ in sign. Ex. OD: +0.25 OS: -0.75 Simple HyperopiaThe Rx will be a + sphere Simple MyopiaThe Rx will be - sphere Marcus GunnTests to see if both pupils constrict when a light is shined in one eye. Tests for abnormalties in pupillary reaction. optotypesletters 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 the eye and prescribing spectale lenses?F.C. Donders (1800) Ocularista paramedical technician who designs, fabricate