NCLE SAMPLE TEST QUESTIONS & ANSWERS (GRADED A+)

antihistamines - ANSWER-are beneficial when treating allergies and cold symptoms because they dry out the mucous membranes of the nasal passage. However, this may also lead to dehydration of the tear film, they are also been known to slow down the blink rate and increase corneal sensitivity. against-the-rule astigmatism - ANSWER-present when the keratometer readings are steeper in the horizontal meridian (42.50) than in the vertical meridian (40.50 @ 90) aqueous humor, tears and limbal blood vessels - ANSWER-this is where the cornea receives nutrients from lipid, aqueous, mucin - ANSWER-the classic model of the pre-corneal tear film is composed of these layers tear film - ANSWER-the main supply of oxygen to the corneal epithelium is derived from the: focus the eyepiece - ANSWER-this is the first step that should be performed when taking keratometer measurements ocular signs of aging - ANSWER-1) tear film abnormalities 2) reduced lid elasticity 3) lens opacities 4) loss of accommodation endothelium - ANSWER-the layer of the cornea whose main function is to keep the cornea clear through created pump action creating proper fluid balance secondary infections - ANSWER-patient with keratitis sicca are more prone to: one week - ANSWER-the average life span of a corneal epithelial cell from mitosis through maturation and desquamation photo-phobia, grittiness and burning sensation - ANSWER-wearing lenses in high altitudes and dry environments may result these complaints from the patient