Optic zone - Study guides, Class notes & Summaries

Certified Paraoptometric Test QUESTIONS WITH COMPLETE SOLUTIONS 2024/2025 | 100% Verified | Graded. The person generally responsible for grinding or duplicating lenses is the ________. Correct Answer: Optician An instrument worn on the examiners head and used to view the back of the eye is call a/an _______. Correct Answer: Binocular indirect opthalmoscope Kerat (root word) Correct Answer: Cornea A test that does not require responses from the patient is called a/an __________ test. Correct...

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OTI NCLE Prep Course UPDATED Actual Exam Questions and CORRECT Answers Optic Zone - CORRECT ANSWER- Central portion of a contact lens which contains the refractive power (generally corresponds to the corneal cap) Posterior Apecal Radius - CORRECT ANSWER- Spin-cast soft lenses. (Curvature of posterior surface changes with refractive power. Measured at apex of posterior surface) Steeper Base Curve - CORRECT ANSWER- As the Posterior radius of curvature is decreased the base curve becomes...

optic zone - Answer the central portion of a contact lens which contains the refractive power and generally corresponds to the central corneal cap posterior apecal radius - Answer this term is generally used in reference to spin-cast soft lenses. the curvature of the posterior surface of the lens changes with the refractive power. the radius of curvature is measured at the apex of the posterior surface. steeper base curve - Answer occurs when the posterior radius of curvature is decreased ...

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...

Which Curve is the Flattest? A) 7.5 mm B) 44.75 D C) 7.6 mm D) 45.50 D - ANSWER 7.6 mm Inflammation of the Eyelids is Called : A) Palpebritis B) Keratitis C) Conjunctivitis D) Blepharitis - ANSWER Blepharitis The Base Curve of a Rigid Lens was Ordered at 7.75 mm but Received at 7.85 mm. The Lens is _______ than ordered. A) 0.50 D Flatter B) 0.50 D Steeper C) 1.00 Flatter D) 1.00 Steeper - ANSWER 0.50 D Flatter The Fairness To Contact Lens Consumers Act of 2003 wa...

NCLE Test Questions and Answers Assessment of the quality of the peripheral curves (blends of a rigid contact lens) is achieved by the use of the- a. profile analyzer b. shadow graph c. keratometer d. burton light - Answer-a. profile analyzer Contact lens power should be specified in- a. back vertex power b. sphero-cylinder power c. power in situ d. posterier apical radius - Answer-a. back vertex power The slit-lamp illumination that gives an overall view of the cornea but limits det...

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...

NCLE Exam Prep Questions and Answers Latest Update optic zone -Answer the central portion of a contact lens which contains the refractive power and generally corresponds to the central corneal cap posterior apecal radius -Answer this term is generally used in reference to spin-cast soft lenses. the curvature of the posterior surface of the lens changes with the refractive power. the radius of curvature is measured at the apex of the posterior surface. steeper base curve -Answer occurs w...

NCLE Advanced Certification Exam Questions With Correct Answers Latest 2024 (GRADED) 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...