What is refractive power - Study guides, Class notes & Summaries

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...

Certified Paraoptometric 200 Questions with Correct Answers 100% Verified An optometrist is licensed by which governing body? - Correct Answers State The person generally responsible for grinding or duplicating lenses is the ________. - Correct Answers Optician An instrument worn on the examiners head and used to view the back of the eye is call a/an _______. - Correct Answers Binocular indirect opthalmoscope Kerat (root word) - Correct Answers Cornea A test that does not require re...

Sherpath Eyes and Ears Exam Questions and Answers  The eye is innervated by which intracranial nerves? - III - IV - VI - XI - XII III (3) IV (4) VI (6) What are the internal layers of the eye? - Outer fibrous layer - Subcutaneous layer - Middle layer - Inner layer - Dermal layer Outer fibrous layer Middle layer Inner layer Match the internal eye structure with the relevant function. - Supports the internal eye structures - Major part of the refractive power of...

How does refractive power of a lens change if its radius of curvature decreases? - The power increases How does refractive power of a lens change if its radius of curvature increases? - power decreases What is radius of curvature in case of a lens? - Flattener lens= larger radius of curvature. More rounded lens=lesser radius of curvature. How does refractive power of a lens change if its index of refraction increases? - Refractive power will increase Calculate the refractive power o...

ABO Test (American Board of Opticianry) | Correct Questions and Answers When light enters the eye, what ocular structure does it interact with first? [Correct ANs: - Cornia Approximately how much power can be generated by the eye's optical system? [Correct ANs: - 60 Diopters An eye that focuses light rays in front of the retina instead of the retina is called [Correct ANs: - Myopic +2.25D is an example of what type of prescription? [Correct ANs: - Hyperopic (myopia is - ) A convex ...

SHERPATH EYES AND EARS EXAM | QUESTIONS & ANSWERS (VERIFIED) | LATEST UPDATE | GRADED A+ The eye is innervated by which intracranial nerves? - III - IV - VI - XI - XII Correct Answer: III (3) IV (4) VI (6) What are the internal layers of the eye? - Outer fibrous layer - Subcutaneous layer - Middle layer - Inner layer 2 - Dermal layer Correct Answer: Outer fibrous layer Middle layer Inner layer Match the internal eye structure with the relevant function. - Supports the ...

OCANZ Optometry final exam Questions and Answers 100% Correct Answers emmetropia - CORRECT ANSWER-optical state of the eye in which parallel light enters the eye and focuses on the retina without the need for any corrective lenses or accommodation; this is the absence of refractive error and the "normal" or ideal state of the eye ametropia - CORRECT ANSWER-refractive error, "abnormal" optical state of the eye in which parallel light rays enter the eye and focus on an area other t...

OCANZ Optometry final exam Questions and Answers 100% Correct Answers emmetropia - CORRECT ANSWER-optical state of the eye in which parallel light enters the eye and focuses on the retina without the need for any corrective lenses or accommodation; this is the absence of refractive error and the "normal" or ideal state of the eye ametropia - CORRECT ANSWER-refractive error, "abnormal" optical state of the eye in which parallel light rays enter the eye and focus on an area other t...

ABO NCLE EXAM 100 QUESTIONS AND ANSWERS (American Board of Opticianry The refractive astigmatism indicated by the RX +1.50 -1.75 x 35 is [Correct Ans: - 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 Ans: - -.75 -.50 x 120 The Geneva lens measure is designed to measure [Correct Ans: - Lens curvature The focal length of a +5.00 diopter lens is [Correct Ans: - 20 cm

what muscle elevates the eyelid? - ANSWER-levator palpebrae superioris what are the triangular spaces formed by the junction of the upper and lower lids called? - ANSWER-canthi what is the pathway of tears? - ANSWER-lacrimal gland --> lacrimal ducts --> lacrimal punctum --> lacrimal caniculi --> lacrimal sac --> nasolacrimal duct what does the orbicularis oculi muscle do? - ANSWER-closes the eye when it contracts what is the area called where the bulbar and palpebral conjun...