Aspheric - Study guides, Class notes & Summaries

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

NCLE Practice Test Practical Questions and Answers with Certified Solutions Steep Fluorescein Pattern Bright green pooling center, very faint green pooling on diameter of lens Flat Fluorescein Pattern Bright green pooling on diameter of lens, very faint green in center Against-the-rule Astigmatism Pattern Bright green pooling horizontally, faint green pooling vertically With-the-rule Astigmatism Pattern Bright green pooling vertically, faint green pooling horizontally Prism Ballast Common te...

To widen the distance between the pads of a frame or mounting, bent the pad arms: - Outward/Angle the temples upward from the end pieces. A reverse slab-off is molded with base _____ prism in the near portion of the lens. - Down Multifocal height is usually determined by measuring from the: - Lower edge of the lens. If the pad arms are lengthened, this adjustment will: - Push the front out more. A semi-rimless mounting consists of: - A center piece with lens bars connecting the end p...

NCLE Practical Questions and Answers Verified A+ Steep Fluorescein Pattern - Bright green pooling center, very faint green pooling on diameter of lens Flat Fluorescein Pattern - Bright green pooling on diameter of lens, very faint green in center Against-the-rule Astigmatism Pattern - Bright green pooling horizontally, faint green pooling vertically With-the-rule Astigmatism Pattern - Bright green pooling vertically, faint green pooling horizontally Pri...

NCLE Study Questions with Correct Answers 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 ...

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 01:05 01:09 The progressive power lens has a progressive zone after w...

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 multifocal lenses have a gradual change ...

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. ...

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 - Answer-d. 42.00/45.00 -2.00 A _________ lens is a translating bifocal: a. concentric b. aspheric c. deffractive d. segmented - Answer-d. segmented A ________auxiliary trial lens will extend the keratometer to 61.00 D. a. -1.25 b....

Certified Paraoptometric Questions and Answers 100% Solved 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 ve...