Steeper base curve - Study guides, Class notes & Summaries

A Correct Statement regarding epithelial cells is that they: a)Comprise the posterior layer of the cornea b)Are unable to regenerate c)Comprise the thickest layer of the cornea d) Have the ability to reproduce - Answer-d Which of the following prescriptions indicates against-the-rule astigmatism? a)-4.50 +1.00 x75 b)-4.50 +1.00 x 180 c)-4.50 -1.00 x 165 d)4.50 -1.00 x 180 - Answer-a When a keratometer is being calibrated, which of the following targets will provide the most reliable r...

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 ...

NCLE basic Exam Kit with Correct Answers What is the Secondary/intermediate curve? - Answer -The curve on the posterior side of the contact lense between the base curve and peripheral curve. Usually 0.7mm to 1.6mm flatter than the base curve radius. The width is affected by the OZ diameter and peripheral width. What is the peripheral curve? - Answer -The outermost curve on the posterior side of the contact lens. It clears the flatter periphery and prevents lens impingement in the limbal are...

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 (i.e...

NCLE Review Questions DK/L Stands for: a. oxygen permeability, b. thermal conduction, c. oxygen transmissibility, d. wettability - C. Oxygen Transmissibility A prism ballast, trunctated lens is on a left eye. The cylinder axis is 90 degrees. Prism base is noted to rotate 15 ddegrees nasally. What cylinder axis shoud be ordered to compensate for the rotation? a. 95, b. 105, c. 110, d. 75, e. 80 - B. 105 Small superficial linear stains are characteristic of? a. foreign particles unde...

optic zone - the central portion of a contact lens which contains the refractive power and generally corresponds to the central corneal cap posterior apecal radius - 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 - occurs when the posterior radius of curvature is decreased (i.e. 8.4 to 8.1 ...

FINAL/OLD: 4- RGP Fluorescein Pattern Evaluation Qs&As 2024 A+ Review How will an area of pooling appear on slit lamp? - ANS-bright green How will a thin tear layer of contact of lens to cornea appear on slit lamp? - ANS-dark or black Smaller dioptric base curve is __________________ (steeper/flatter)? - ANS-flatter Smaller mm base curve is __________________(steeper/flatter)? - ANS-steeper What are the 3 types of fluorescein patterns you may see on a GP lens? - ANS...

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...

A Correct Statement regarding epithelial cells is that they: a)Comprise the posterior layer of the cornea b)Are unable to regenerate c)Comprise the thickest layer of the cornea d) Have the ability to reproduce : d) have the ability to reproduce Which of the following prescriptions indicates against-the-rule astigmatism? a)-4.50 +1.00 x75 b)-4.50 +1.00 x 180 c)-4.50 -1.00 x 165 d)4.50 -1.00 x 180 : a)-4.50 +1.00 x75 2 | P a g e When a keratometer is being calibrated, which of the fo...

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...