NCLE TESTS COMPILATION BUNDLE

Which of the following medications may affect successful contact lens wear? A. Antacids B. Antihistamines C. Aspirin D. Laxatives - B. Antihistimines Which term refers to a sensitivity to light? A. Prebyopia B. Photophobia C. Pannus D. Ptosis - B. Photophobia The following is an example of what type...

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 accom...

Which of the following medications may affect successful contact lens wear? a. antacids b. antihistamines c. aspirin d. laxatives - antihistamines Which term refers to a sensitivity to light A.presbyopia B.Photophobia C.Pannus D. Ptosis - Photophobia The following is an example of what type of astig...

optic zone Correct Answer: The central portion of a contact lens which contains the refractive power and generally corresponds to the central corneal cap Posterior Apecal Radius Correct Answer: this term is generally used in reference to spin-cast soft lenses. the curvature of the posterior sur...

Assessment of the quality of the peripheral curves (blends of a rigid contact lens) is achieved by the use of thea. profile analyzer b. shadow graph c. keratometer d. burton light - a. profile analyzer Contact lens power should be specified ina. back vertex power b. sphero-cylinder power c. power in...

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 Correct Answer: d) have the ability to reproduce Which of the following prescrip...

What is the Secondary/intermediate curve? Correct 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 periph...

the lens design of choice when there is little or no corneal astigmatism and a significant amount of refractive astigmatism. a. front surface cylinder b. back surface toric c. bitoric lens d. spherical gp Correct Answer: a. front surface cylinder this design is indicated when the refracti...

The tear film consists of which the following? a. aqueous layer b. conjunctiva c. lipid film d. mucin film Correct Answer: a c d The primary function of the mucin film is to: change the corneal epithelial surface from a "_________ surface to a ___________ surface" Correct Answer: hydr...