NCLE Sample Test Questions with Correct Answers Latest Update 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 -Answerpresent 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 -Answerthis is where the cornea receives nutrients from lipid, aqueous, mucin -Answerthe classic model of the pre-corneal tear film is composed of these layers tear film -Answerthe main supply of oxygen to the corneal epithelium is derived from the: focus the eyepiece -Answerthis is the first step that should be performed when taking keratometer measurements