1
Ncle practice exam|
UPDATE|COMPREHENSIVE QUESTIONS
AND VERIFIED SOLUTIONS/CORRECT
ANSWERS|GET 100% ACCURATE!!
Which of the following medications may affect successful contact lens wear? a.
Antacids b. Antihistamines c. Aspirin d. Laxatives - (ANSWER)b. Antihistamines
Which term refers to a sensitivity to light? a. Presbyopia 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
The cornea receives nutrients from: 1) Aqueous humor 2) Tears 3) Limbal blood
vessels 4) Orbicularis occuli
a) Aqueous humor, Limbal Blood Vessels, and Orbicularis Occuli
b) Tears and Limbal Blood Vessels
c) Aqueous humor, Tears, and Limbal Blood Vessels
d) Limbal Blood Vessels and Orbicularis occuli - (ANSWER)c) Aqueous humor,
Tears, and Limbal Blood Vessels
,2
The increased loss of ability of the crystalline lens to accommodate is called: a)
Presbyopia b) Myopia c) Hyperopia d) Aphakia - (ANSWER)a) Presbyopia
Which instrument can provide simultaneous information about the cornea, lids,
conjunctiva, lashes, contact lens surface and fit? a) Radiuscope b) Corneoscope c)
Slit lamp d) Keratometer - (ANSWER)c) Slit lamp
The pre-corneal tear film is composed of three layers. They are:
a) Lysozyme, oil, lacrimal
b) Sebaceous, mucoid, BAK
c) Lipid, aqueous, mucin
d) Water, mucoid, lysozyme - (ANSWER)c) Lipid, aqueous, mucin
Transpose the following Rx into minus cylinder form: Rx -4.50 +1.25 x 94
a) -3.25 -1.25 x 4
b) -3.25 -1.25 x 94
c) -4.50 -1.25 x 4
d) -5.75 -1.25 x 4 - (ANSWER)a) -3.25 -1.25 x 4
The average pH value of the human tear is:
a) 6.6
b) 7.4
,3
c) 7.8
d) 10.0 - (ANSWER)b) 7.4
If the manufacturer's guidelines suggest a minimum of 4 hours for disinfection,
what would you suggest to the patient?
a) Never leave lenses in disinfectant overnight
b) 2 to 3 hours is probably enough
c) Use surfactant cleaner and preserved saline
d) A minimum of 4 hours is required - (ANSWER)d) A minimum of 4 hours is
required
The main supply of oxygen to the corneal epithelium is derived from the:
a) Stroma b) Collagen fibrils c) Basal membrane d) Tear film - (ANSWER)d) Tear
film
What is the term for the condition in which there is loss of vision without any
apparent disease to the eye?
a) Amblyopia b) Aniridia c) Astigmatism d) Aphakia - (ANSWER)a) Amblyopia
Which auxiliary trial lens will extend the keratometer to approximately 30.00 D?
a) +1.00 D
b) +1.25 D
c) -1.00 D
, 4
d) -1.50 D - (ANSWER)c) -1.00 D
Which step should be performed first when taking keratometer measurements?
a) Rotate the drum to reflect the cylinder axis
b) Adjust the patient so that they are comfortable
c) Focus the eyepiece
d) Cover the patient's eye that is not being measured - (ANSWER)c) Focus the
eyepiece
The following is an example of what type of astigmatism? K's 44.00 @ .50
@ 90
Rx -3.00 -2.50 x 180
a) Lenticular astigmatism
b) Against-the-rule astigmatism
c) Irregular astigmatism
d) Oblique astigmatism - (ANSWER)a) Lenticular astigmatism
. Ocular signs, of aging include:
1) Tear film abnormalities
2) Reduced lid elasticity
3) Lens opacities
4) Loss of accommodation
Ncle practice exam|
UPDATE|COMPREHENSIVE QUESTIONS
AND VERIFIED SOLUTIONS/CORRECT
ANSWERS|GET 100% ACCURATE!!
Which of the following medications may affect successful contact lens wear? a.
Antacids b. Antihistamines c. Aspirin d. Laxatives - (ANSWER)b. Antihistamines
Which term refers to a sensitivity to light? a. Presbyopia 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
The cornea receives nutrients from: 1) Aqueous humor 2) Tears 3) Limbal blood
vessels 4) Orbicularis occuli
a) Aqueous humor, Limbal Blood Vessels, and Orbicularis Occuli
b) Tears and Limbal Blood Vessels
c) Aqueous humor, Tears, and Limbal Blood Vessels
d) Limbal Blood Vessels and Orbicularis occuli - (ANSWER)c) Aqueous humor,
Tears, and Limbal Blood Vessels
,2
The increased loss of ability of the crystalline lens to accommodate is called: a)
Presbyopia b) Myopia c) Hyperopia d) Aphakia - (ANSWER)a) Presbyopia
Which instrument can provide simultaneous information about the cornea, lids,
conjunctiva, lashes, contact lens surface and fit? a) Radiuscope b) Corneoscope c)
Slit lamp d) Keratometer - (ANSWER)c) Slit lamp
The pre-corneal tear film is composed of three layers. They are:
a) Lysozyme, oil, lacrimal
b) Sebaceous, mucoid, BAK
c) Lipid, aqueous, mucin
d) Water, mucoid, lysozyme - (ANSWER)c) Lipid, aqueous, mucin
Transpose the following Rx into minus cylinder form: Rx -4.50 +1.25 x 94
a) -3.25 -1.25 x 4
b) -3.25 -1.25 x 94
c) -4.50 -1.25 x 4
d) -5.75 -1.25 x 4 - (ANSWER)a) -3.25 -1.25 x 4
The average pH value of the human tear is:
a) 6.6
b) 7.4
,3
c) 7.8
d) 10.0 - (ANSWER)b) 7.4
If the manufacturer's guidelines suggest a minimum of 4 hours for disinfection,
what would you suggest to the patient?
a) Never leave lenses in disinfectant overnight
b) 2 to 3 hours is probably enough
c) Use surfactant cleaner and preserved saline
d) A minimum of 4 hours is required - (ANSWER)d) A minimum of 4 hours is
required
The main supply of oxygen to the corneal epithelium is derived from the:
a) Stroma b) Collagen fibrils c) Basal membrane d) Tear film - (ANSWER)d) Tear
film
What is the term for the condition in which there is loss of vision without any
apparent disease to the eye?
a) Amblyopia b) Aniridia c) Astigmatism d) Aphakia - (ANSWER)a) Amblyopia
Which auxiliary trial lens will extend the keratometer to approximately 30.00 D?
a) +1.00 D
b) +1.25 D
c) -1.00 D
, 4
d) -1.50 D - (ANSWER)c) -1.00 D
Which step should be performed first when taking keratometer measurements?
a) Rotate the drum to reflect the cylinder axis
b) Adjust the patient so that they are comfortable
c) Focus the eyepiece
d) Cover the patient's eye that is not being measured - (ANSWER)c) Focus the
eyepiece
The following is an example of what type of astigmatism? K's 44.00 @ .50
@ 90
Rx -3.00 -2.50 x 180
a) Lenticular astigmatism
b) Against-the-rule astigmatism
c) Irregular astigmatism
d) Oblique astigmatism - (ANSWER)a) Lenticular astigmatism
. Ocular signs, of aging include:
1) Tear film abnormalities
2) Reduced lid elasticity
3) Lens opacities
4) Loss of accommodation
