Antimetropia Study guides, Class notes & Summaries

Ophthalmic prescription is the formula to correct what? - To correct refractive anomalies in an individual patient With prism, do you have to specify the direction? - Yes What does Anisometropia and Antimetropia have in common? - Both may result in the condition where unequal images are sent to the brain by the eyes. Aniseikonia - The condition that cause two unequal images being sent to the brain What lenses do you use to fix Aniseikonia? - Iseikonic Lenses When a patient comes up with...

ABO Exam Questions and Answers 2023 Complete (100%Verified). Name the 3 types of tunics of the eye, and what areas of the eye they consist of. - Correct Answer-1. Fibrous: cornea and sclera (outer protective coating) 2. Vascular: iris, ciliary body and choroid (uveal tract) 3. Neural: retina During accommodation, what 3 things do the eyes do? - Correct Answer-1. Ciliary muscle relaxes allowing for thickening of crystalline lens 2. Eyes converge 3. Pupils constrict What happens with Anis...

Name the 3 types of tunics of the eye, and what areas of the eye they consist of. - ANSWER 1. Fibrous: cornea and sclera (outer protective coating) 2. Vascular: iris, ciliary body and choroid (uveal tract) 3. Neural: retina During accommodation, what 3 things do the eyes do? - ANSWER 1. Ciliary muscle relaxes allowing for thickening of crystalline lens 2. Eyes converge 3. Pupils constrict What happens with Aniseikonia? - ANSWER The ocular image of an object with one eye differs in ...

Optician ABO Exam Questions and Answers 100% Pass - Answer- 'A' measurement, 'B' measurement, and geometrical center - Answer-what does the boxing system find 1 inch = - Answer-25.4 mm 1 meter = - Answer-39.37 inches 1.53 - Answer-the refractive index to which Optical tools and gauges are calibrated is 1.66 - Answer-refractive index of hi index 1.66 1.74 - Answer-refractive index of hi index 1.74 1.498 - Answer-refractive index of cr-39 1.523 - Answer-the index of refraction of cro...

ABO Exam Questions and Answers 2023 Complete;100% verified Name the 3 types of tunics of the eye, and what areas of the eye they consist of. 1. Fibrous: cornea and sclera (outer protective coating) 2. Vascular: iris, ciliary body and choroid (uveal tract) 3. Neural: retina During accommodation, what 3 things do the eyes do? 1. Ciliary muscle relaxes allowing for thickening of crystalline lens 2. Eyes converge 3. Pupils constrict What happens with Aniseikonia? The ocular image of ...

ABO sample Questions with Complete Solutions When light is refraction by a prism it is: a. Bent toward the apex b, Bent toward the base c. Not bent d. Reflected -Answer-B. Bent toward the base A prism always bends light toward its base. Prisms: I. Always bend light toward the base II. Always bend light toward the apex III. Cause chromatic Dispersion IV. Move the image toward the apex V. Are sometimes prescribed for muscle problems -Answer-I. Always bend light toward base III. Cause...

ABO Exam Questions and Answers 2023 Complete (100%Verified). Name the 3 types of tunics of the eye, and what areas of the eye they consist of. - Correct Answer-1. Fibrous: cornea and sclera (outer protective coating) 2. Vascular: iris, ciliary body and choroid (uveal tract) 3. Neural: retina During accommodation, what 3 things do the eyes do? - Correct Answer-1. Ciliary muscle relaxes allowing for thickening of crystalline lens 2. Eyes converge 3. Pupils constrict What happens with Anis...

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 refractive astigmatism indicated by the RX +1.50 -1.75 x 35 is correct answers Mixed The patient's RX is -1.75 -.50 x 120 with a +2.00 ADD standard trifocal. What is the power through the intermediate? correct answers -.75 -.50 x 120 The Geneva lens measure is designed to measure correct answers Lens curvature The focal length of a +5.00 diopter lens is correct answers 20 cm The problem of prismatic imbalance at the reading level is called correct answers Anisometropia Whic...

Prentice Rule - ANS (Power x distance in mm) /10 Cornea index of refraction - ANS 1.37 Tear Film, Vitreous index of refraction - ANS 1.33 Crystalline lens index of refraction - ANS 1.42 Optical Standard index of refraction - ANS 1.53 Crown Glass index of refraction - ANS 1.523 High index of refraction - ANS 1.74 CR-39 index of refraction - ANS 1.49/1.50 Poly index of refraction - ANS 1.586 Air - ANS 1.00 How fast does light travel throu...