NCLE

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 answers d) have the ability to reproduce Which of the following prescript...

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

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 ac...

Which of the following medications may affect successful contact lens wear? a. antacids b. antihistamines c. aspirin d. laxatives correct answers antihistamines Which term refers to a sensitivity to light A.presbyopia B.Photophobia C.Pannus D. Ptosis correct answers Photophobia The fo...

optic zone correct answers the central portion of a contact lens which contains the refractive power and generally corresponds to the central corneal cap posterior apecal radius correct answers this term is generally used in reference to spin-cast soft lenses. the curvature of the posterior surfa...

The tear film layer that prevents evaporation of the aqueous is: correct answers lipid An outward turning of the eyelid is called: correct answers ectropion the slit lamp illumination used to assess flourescein pattern with RGP lenses, lens positioning and movement is: correct answers diffuse ...

Which of the following medications may affect successful contact lens wear? A. Antacids C. Aspirin B. Antihistamines D. Laxatives correct answers The answer is B Antihistamines are beneficial when treating allergies and cold symptoms because they dry out the mucous membranes of the nasal passage. Ho...

HYDROGEL correct answers Soft contacts are manufactured from hydrogel Due to the high water content there are often fluctuations in vision. Benefits of soft contact lenses: correct answers •Comfort •Shorter adjustment period •More comfortable in dusty environments •Sports. Excellent f...

Adnexa Oculi correct answers The accessory structures of the eye that include the eyelids and eyelashes, lacrimal apparatus and conjunctiva Eyelids correct answers protects the eye, distribute tears over the anterior portion of the eye, and limit the amount of light that enters the eye Palpebr...