Optical zone - Study guides, Class notes & Summaries

NCLE Advanced Certification Exam 2023 The answer is D. The posterior optical zone will directly affect the lens to cornea relationship of a rigid gas permeable lens. If the posterior optical zone is steepened, it will increase the sagittal depth. If it is flattened, it will decrease the sagittal depth. Changing the power, which is accomplished by changing the anterior optical zone, will not affect the sagittal depth of the lens, nor will changing its edge design. - CORRECT ️️ 1. The s...

NCLE 2024 Exam Questions with Correct Answers which of the following is not important to document in medical records for contact lens patients? - Answer-location at which the patient was originally taught insertion and removal which of the following will not increase the movement of a tight fitting rigid gas permeable lens? - Answer-enlarge the posterior optic zone After building up her wearing time, Jennifer returned for an afternoon recheck after eight hours of lens wear. The lenses mov...

Differential media - allow certain bacteria to be differentiated from others by change of color, zone of clearing, or other Bacteria can prevent phage attachment and escape infection by acquiring mutations on genes which alter their _________. - cell surface receptors A _______ agent does not kill a microorganism, but rather just inhibits its growth. - bacteriostatic A clear area surrounded by growth of host cells is called a _______. - plaque A color change to yellow on the mannitol salt ...

Certified Paraoptometric Questions and Answers 2024/2025 (Verified Answers) Already Passed. An optometrist is licensed by which governing body? State The person generally responsible for grinding or duplicating lenses is the ________. Optician An instrument worn on the examiners head and used to view the back of the eye is call a/an _______. Binocular indirect opthalmoscope Kerat (root word) Cornea A test that does not require responses from the patient is called a/an __________ test. Ob...

ABO Practice Test (Answered) With Complete Verified Solution. To mount a lens in a nylon suspension type frame, it would be necessary to _______ the lens. a) Drill b) Notch c) Groove d) V-Bevel c) Groove The optical center of a lens is: a) At the geometrical center b) One the 180 line c) At the point where the "a" and "b" measurement meet d) A lens location of zero deviation of the optical axis d) A lens location of zero deviation of the optical axis The progressive power ...

Accommodation - The ability of the crystalline lens to adjust power to provide retinal focus of images of objects closer than optical infinity annular bifocal contact - A lens with distance portion ground into the center of the lens and the near portion ground into the periphery Anterior Bevel/CN Beve - Angulation applied to the anterior surface of a lens to reduce edge Thickness Anterior Optical Zone (AOZ) - Diameter of the anterior power curve Aphakia - Absence of the crystalline lens. ...

NCLE Advanced Certification Exam Questions and Answers Already Passed 1. The sagittal depth of a rigid gas permeable contact lens can be altered without changing the diameter by: A. Changing the power B. Changing the edge design C. Changing the radius of curvature of the anterior optical zone D. Changing the radius of curvature of the posterior optical zone -Answer The answer is D. The posterior optical zone will directly affect the lens to cornea relationship of a rigid gas permeabl...

Certified Paraoptometric Questions and Answers 2024/2025 (Verified Answers) Already Passed. An optometrist is licensed by which governing body? State The person generally responsible for grinding or duplicating lenses is the ________. Optician An instrument worn on the examiners head and used to view the back of the eye is call a/an _______. Binocular indirect opthalmoscope Kerat (root word) Cornea A test that does not require responses from the patient is called a/an __________ test. Ob...

NCLE Advanced Certification Exam Questions and Answers Already Passed The answer is D. The posterior optical zone will directly affect the lens to cornea relationship of a rigid gas permeable lens. If the posterior optical zone is steepened, it will increase the sagittal depth. If it is flattened, it will decrease the sagittal depth. Changing the power, which is accomplished by changing the anterior optical zone, will not affect the sagittal depth of the lens, nor will changing its edge d...

1. The sagittal depth of a rigid gas permeable contact lens can be altered without changing the diameter by: A. Changing the power B. Changing the edge design C. Changing the radius of curvature of the anterior optical zone D. Changing the radius of curvature of the posterior optical zone - The answer is D. The posterior optical zone will directly affect the lens to cornea relationship of a rigid gas permeable lens. If the posterior optical zone is steepened, it will increase the sa...