Aspheric - Study guides, Class notes & Summaries

NCLE Practice Exam Questions with Correct Answers What is the thickest layer of the cornea? - Answer-stroma Which corneal layer controls the fluid content of the cornea? - Answer-endothelium What is cornea edema? - Answer-excess fluid in the stroma that can swell it and lead to loss of visual acuity What kind of contact lenses must be stabilized (not rotate) on the eye for good vision? - Answer-toric contact lenses Concentric vs Aspheric Multifocal Lens Design - Answer-aspheric mult...

Steep Fluorescein Pattern - Answer Bright green pooling center, very faint green pooling on diameter of lens Flat Fluorescein Pattern - Answer Bright green pooling on diameter of lens, very faint green in center Against-the-rule Astigmatism Pattern - Answer Bright green pooling horizontally, faint green pooling vertically With-the-rule Astigmatism Pattern - Answer Bright green pooling vertically, faint green pooling horizontally Prism Ballast - Answer Common technique ...

NCLE Exam Review Questions and answers. VERIFIED/ What is the thickest layer of the cornea? - stroma Which corneal layer controls the fluid content of the cornea? - endothelium What is cornea edema? - excess fluid in the stroma that can swell it and lead to loss of visual acuity What kind of contact lenses must be stabilized (not rotate) on the eye for good vision? - toric contact lenses Concentric vs Aspheric Multifocal Lens Design - aspheric multifocal lenses have a gradual change in ...

NCLE Pre-Test 2024. annular bifocal contact - ANSWER A lens with distance portion ground into the center of the lens and the near portion ground into the periphery aphakic lenses - ANSWER lenses designed for post-cataract fitting apical zone of cornea - ANSWER the central portion of the cornea with a constant radius of curvature. Also called the corneal cap. artificial tears - ANSWER medications, many of them over the counter, to treat dry eyes aspheric lens - ANSWER A non-spherical...

annular bifocal contact - A lens with distance portion ground into the center of the lens and the near portion ground into the periphery aphakic lenses - lenses designed for post-cataract fitting apical zone of cornea - the central portion of the cornea with a constant radius of curvature. Also called the corneal cap. artificial tears - medications, many of them over the counter, to treat dry eyes aspheric lens - A non-spherical lens, in which the radii of curvature increase towards th...

Certified Paraoptometric Questions and Answers 100% Pass Ophthalmoscopy The Examination of the inside of the eye. Vertex distance The distance from the back surface of the lens to the front of the eye. Fundus The interior portion of the eyeball that may be seen on ophthalmoscopy. Turn the eye downward What is the primary function of the inferior rectus muscle? Sub conjunctival hemorrhage A broken blood vessel between the sclera and conjunctiva. What does a lensometer measure? Back vertex ...

NCLE Test Exam Questions & Answers, VERIFIED/ RATED A+ (NUMBER 22) Given the following information: K's 45.00 @ 180/42.00 @ 90 Rx -2.00 -4.25 x 90 Which of the following RGP lens designs would best correct this wearers vision? a. 45.00 -2.00 b. 42.00 -2.00 -4.25 x 90 prism ballasted c. 42.00 -2.00 d. 42.00/45.00 -2.00 - d. 42.00/45.00 -2.00 A _________ lens is a translating bifocal: a. concentric b. aspheric c. deffractive d. segmented - d. segmented A ________auxiliary trial le...

"Haptic" lens is used in reference to - Scleral lens A aspheric PCC - Is a toric pcc and has a specific eccentricity value A bi-toric rigid lens will show - Two base curves on the radiuscope, sphero-cylindrical rx on the lensometer A bifocal design that utilizes a small central reading area and a distance periphery is - Reverese Centrad A dynamic flourescein pattern is best illuminated by - Cobalt blue light A finished contact lens will have the following properties - 1. Diameter cut to...

Flat Fluorescein Pattern - ANSWER-Bright green pooling on diameter of lens, very faint green in center Against-the-rule Astigmatism Pattern - ANSWER-Bright green pooling horizontally, faint green pooling vertically With-the-rule Astigmatism Pattern - ANSWER-Bright green pooling vertically, faint green pooling horizontally Prism Ballast - ANSWER-Common technique to stabilize lens from rotating. Added thickness will position lens inferiorly (bottom of cornea) Truncation - ANSWER-Cuttin...

Ophthalmoscopy CORRECT ANSWER-The Examination of the inside of the eye. Vertex distance CORRECT ANSWER-The distance from the back surface of the lens to the front of the eye. Fundus CORRECT ANSWER-The interior portion of the eyeball that may be seen on ophthalmoscopy. Turn the eye downward CORRECT ANSWER-What is the primary function of the inferior rectus muscle? Sub conjunctival hemorrhage CORRECT ANSWER-A broken blood vessel between the sclera and conjunctiva. What does a lensom...