NCLE Prep Exam Part 1 of 4 with Complete Solutions.

Which term refers to a sensitivity to light? A. Prebyopia B. Photophobia C. Pannus D. Ptosis - ANSWER-B. Photophobia The following is an example of what type of astigmatism? K's 42.50 @ 180 / 40.50 @ 90 A. With the Rule Astigmatism B. Lenticular Astigmatism C. Against the Rule Astigmatism D. Irregular Astigmatism - ANSWER-C. Against the Rule Astigmatism This is present when the K readings are steeper i the horizontal meridian than the vertical meridian The cornea receives nutrients from: 1) Aqueous Humor 2) Tears 3) Limbal Blood Vessels 4) Orbicularis Occuli A. 1, 3 & 4 B. 2 &3 C. 1, 2 & 3 D. 3 & 4 - ANSWER-C. 1, 2 & 3 The normal cornea is devoid of blood vessels. To provide metabolites, the cornea is nourished by diffusion of nutrients and oxygen by the aqueous humor, tears, and vascular blood vessels in the limbus. (The orbicularis occuli is a muscle in the eyelid whose primary function is lid closure) The increased loss of ability of the crystalline lens to accommodate is called: A. Presbyopia