ABO 2024 Update Practice Exam Questions and Answers 100% verified (actual test)

Prentice Rule - correct answers(Power x distance in mm) /10 Cornea index of refraction - correct answers1.37 Tear Film, Vitreous index of refraction - correct answers1.33 Crystalline lens index of refraction - correct answers1.42 Optical Standard index of refraction - correct answers1.53 Crown Glass index of refraction - correct answers1.523 High index of refraction - correct answers1.74 CR-39 index of refraction - correct answers1.49/1.50 Poly index of refraction - correct answers1.586 Air - correct answers1.00 How fast does light travel through air - correct answers186,000 mi/sec MBS formula - correct answersED+2 (decentration)+2 Focal length formula - correct answers1/Dioptic Power power Dioptic Power formula - correct answers1/Focal Length Antimetropia - correct answersRx with unlike signs in both eyes Anisometropia - correct answersDifference of 2 diopters btwn OD & OS Anisiekonia - correct answersWhen images from right and left eye are so different the brain can not achieve fusion What is the Radius of a 1 diopter curve? - correct answers530mm Radius formula - correct answers530/Power = Radius Power formula - correct answers530/Radius = Power Vertical Decentration formula - correct answersS. - B/2 How much HORIZONTAL prism tolerance is allowed? - correct answers2/3 of a diopter -or- 0.667 How much VERTICAL prism tolerance is allowed? - correct answers1/3 of a diopter -or- 0.333 Base Curve tolerance - correct answers+/-0.75 Sphere Tolerance up to 6.50 - correct answers+/- 0.13 Sphere Tolerance above 6.50 - correct answers+/- 2% Cylinder Tolerance 1.50 - correct answers+/-2° Cylinder Tolerance 0.50 / less than or equal to 1.50 - correct answers+/-3° Cylinder Tolerance 0.25 / less than or equal to 0.50 - correct answers+/-7° Cylinder Tolerance 0.00 / less than or equal to 0.25 - correct answers+/-14° Drop ball test for Safety lenses - correct answers5/8ths in diameter, weighing 0.56oz dropped 50ft Frame PD - correct answersA box + DBL Total decentration - correct answersFrame PD - Patient PD Base IN (MINUS) - correct answersIf frame PD is GREATER than customer PD Base OUT (MINUS) - correct answersIf frame PD is LESS than customer PD Which layer of the cornea is highly regenerative? - correct answersEpithelium Which area of the retina is capable of perceiving the greatest amount of detail? - correct