Contact Lens 1 Midterm Answers
Which of the subsequent information tells us that the affected person would in all likelihood
advantage from gentle touch lens wear?
-affected person is an athlete
-patient is a landscaper
-patient works with pesticides
-affected person is an emmetrope
patient is an athlete
The auto-refractor may be used to pick out:
-contraindications
-sphere, cylinder, and axis
-visible acuity with glasses
-tear ruin-up time
sphere, cylinder, and axis
The keratometer is used to measure:
-lens power
-spectacle prescription
-pupillary distance
-corneal curvature
corneal curvature
The shorter the radius of curvature:
-the smaller the diameter
-the steeper the bottom curve
-the thicker the lens
-the flatter the base curve
the steeper the bottom curve
A affected person has a spectacle prescription of -three.50 - zero.50 x a hundred and eighty.
Which of the subsequent contact lens powers could you expect to offer the exceptional
visible acuity?
-3.50
-three.Seventy five
-four.00
-4.50
-3.75
, A patient has a spectacle prescription of -7.50 - 1.50 x one hundred eighty. What is the
spherical equal?
-7.50
-eight.00
-8.25
-nine.00
-8.25
Prolonged intervals of near paintings while sporting gentle contact lenses can also cause
pain due to:
-reduced blinking
-neovascularization
-pupil dilation
-lack of ability to deal with
decreased blinking
The proper fitting courting for gentle contact lenses is known as the 3-factor-touch. Which of
the under are the mentioned regions a smooth contact lens ought to touch?
-center of cornea, and contrary edges on the sclera
-higher lid, lower lid, and bowman's layer
-limbus, conjunctive, and scholar
-retina, macula, and iris
center of cornea, and two opposite edges at the sclera
If a contact lens is too flat, you will assume to see:
-Little to no motion upon blinking
-3 point touch
-excessive decentration or movement with eye movement
-half of to at least one mm of movement upon blinking
immoderate decentration or movement with eye movement
A affected person's spectacle prescription is +9.00 -1.00 x half, vertex distance = thirteen
mm. What CL electricity might you choose?
+10.Seventy five
+7.50
+eight.Seventy five
+nine.50
+9.50
Preservatives are delivered to touch lens solutions to:
-damage microorganisms
-neutralize hydrogen peroxide
-shield the answer from spoilage after establishing
Which of the subsequent information tells us that the affected person would in all likelihood
advantage from gentle touch lens wear?
-affected person is an athlete
-patient is a landscaper
-patient works with pesticides
-affected person is an emmetrope
patient is an athlete
The auto-refractor may be used to pick out:
-contraindications
-sphere, cylinder, and axis
-visible acuity with glasses
-tear ruin-up time
sphere, cylinder, and axis
The keratometer is used to measure:
-lens power
-spectacle prescription
-pupillary distance
-corneal curvature
corneal curvature
The shorter the radius of curvature:
-the smaller the diameter
-the steeper the bottom curve
-the thicker the lens
-the flatter the base curve
the steeper the bottom curve
A affected person has a spectacle prescription of -three.50 - zero.50 x a hundred and eighty.
Which of the subsequent contact lens powers could you expect to offer the exceptional
visible acuity?
-3.50
-three.Seventy five
-four.00
-4.50
-3.75
, A patient has a spectacle prescription of -7.50 - 1.50 x one hundred eighty. What is the
spherical equal?
-7.50
-eight.00
-8.25
-nine.00
-8.25
Prolonged intervals of near paintings while sporting gentle contact lenses can also cause
pain due to:
-reduced blinking
-neovascularization
-pupil dilation
-lack of ability to deal with
decreased blinking
The proper fitting courting for gentle contact lenses is known as the 3-factor-touch. Which of
the under are the mentioned regions a smooth contact lens ought to touch?
-center of cornea, and contrary edges on the sclera
-higher lid, lower lid, and bowman's layer
-limbus, conjunctive, and scholar
-retina, macula, and iris
center of cornea, and two opposite edges at the sclera
If a contact lens is too flat, you will assume to see:
-Little to no motion upon blinking
-3 point touch
-excessive decentration or movement with eye movement
-half of to at least one mm of movement upon blinking
immoderate decentration or movement with eye movement
A affected person's spectacle prescription is +9.00 -1.00 x half, vertex distance = thirteen
mm. What CL electricity might you choose?
+10.Seventy five
+7.50
+eight.Seventy five
+nine.50
+9.50
Preservatives are delivered to touch lens solutions to:
-damage microorganisms
-neutralize hydrogen peroxide
-shield the answer from spoilage after establishing
