Contact Lens Final Exam
- ANS-What behaviors will we desire for our sufferers?
Hand-washing (***important! Most microbes on CL proper after putting into eye; only a few
microbes after been on eye at cease of day)
Regular lens/case substitute
Proper care of their lenses/use of the system
-ALL require a rinse (~5 seconds every facet). Why? Physical
-ALL require at least a 4 (if no longer 6) hr soak. Why? Chemical (D-price)
No topping off.
SOME require a rub to be effective
-2.75 - ANS-Steeper Add Minus
Flatter Add Plus
Example: Lens (-three.25 D, BCR = forty three.00) is
too steep (critical pooling). Flatten by way of 0.50
D to forty two.50 D.
FAP = -three.25 + [ABS(43.00-42.50)] = ?
-Clear Care gadget
-Biotrue
-Optifree puremoist - ANS--superior infection against acanthomoeba
% water content - ANS-(wet weight - dry weight)/wet weight
Lens is measured before and after drying in
oven
Hand held refractometer* measures strong
content (water content material = 100% - stable
content material)
= pHEMA (gentle)
(fabric chemistry) - ANS-PMMA (inflexible)
+
hydroxyl organizations (OH) to increase
hydrophilicity
=
?
Four capabilities of Cl answers - ANS-1. Disinfect/Clean - preservatives kill/inhibit
2. Enhance floor wettability
3. Keep lens hydrated
four. Mechanical buffer between lens and
cornea
Acanthamoeba keratitis - ANS-Radial keratoneuritis
, Excruciating pain but eye doesnt look terrible
-train pt to live far from water with CLs
Acuvue Transitions - ANS--need UV light to darken the lens
-doesnt paintings well in car b/c solar is blocked from above
Adaptation symptoms (neophyte) - ANS-ALL MILD:
Discomfort
Tearing; FB sensation
Increased blinking
Intermittent blurry imaginative and prescient
Redness
Light sensitivity
Ant. Segment Evaluation for CL headaches - ANS-Slit lamp exam:
Consistent with preceding education
Addition of evaluation of ALL tarsal plates
Vital dyes for assessment of ocular surface
integrity
Aqueous poor dry eye - ANS-Sjogren's Syndrome
LASIK
Medications
Chemotherapy/Radiation
Lacrimal gland inflammation
-tx:
systane and systane extremely
optive and refresh
theratears
aspheric contact lenses - ANS-Anterior surface spherical
+
posterior floor aspheric (elliptical,
parabolic, hyperbolic)
= increasing plus energy in periphery
ATR - ANS-- toric cornea pools inside the horizontal meridian
Avoiding CL complications - ANS-Compliance and CL Case History
How regularly do you put on your lenses
overnight?
Tell me what you do along with your lenses/case at
night
Tell me what you do along with your lenses/case in
the morning
How regularly do you replace your case?
Topping off solutions
, Disinfection homes reduced if answer isn't replaced
Avoiding CL headaches - ANS-No water on lenses ever
Case: ****
Replace each three to six months
Wipe with tissue
Store caps the wrong way up
averting CL complications - ANS-Practitioner Factors:
Look for dry eye, lid problems, different ocular
issues BEFORE you suit
Prescribe an APPROVED carrying time table
Prescribe a care/cleaning routine
Educate at each visit
Make sure you be aware of the fit
again floor SCL - ANS-monocurve, bicurve, or aspheric
Also sagittal intensity (sag) or
vault
Much flatter than K because of large diameter.
Range: eight.00 to nine.20 mm
Usually 2 BCR alternatives
Custom are available
bacterial keratitis - ANS-FBS not resolved with lens elimination
Pain, crimson, swollen, tearing, photophobic,
loss of vision
Scrape/culture prior to remedy
Appropriate antibiotic
Benzalkonium Chloride (BAK) - ANS-Wide spectrum of micro organism and fungi
Only GP solutions
benzyl alcohol - ANS-Both disinfectant and anti-lipid***
Biguanides (PHMB) - ANS--Biotrue (additionally carries polyquad)
-ReNu Fresh; ReNu Sensitive
-Complete MPS Easy Rub
-ClearCare/ClearCarePlus
/AOSEPT
Boston simplus - ANS--non abrasive GP answer
-exact for excessive Dk lenses
Calculi, jelly bumps - ANS--on SCLs handiest
-mixture of deposits
- ANS-What behaviors will we desire for our sufferers?
Hand-washing (***important! Most microbes on CL proper after putting into eye; only a few
microbes after been on eye at cease of day)
Regular lens/case substitute
Proper care of their lenses/use of the system
-ALL require a rinse (~5 seconds every facet). Why? Physical
-ALL require at least a 4 (if no longer 6) hr soak. Why? Chemical (D-price)
No topping off.
SOME require a rub to be effective
-2.75 - ANS-Steeper Add Minus
Flatter Add Plus
Example: Lens (-three.25 D, BCR = forty three.00) is
too steep (critical pooling). Flatten by way of 0.50
D to forty two.50 D.
FAP = -three.25 + [ABS(43.00-42.50)] = ?
-Clear Care gadget
-Biotrue
-Optifree puremoist - ANS--superior infection against acanthomoeba
% water content - ANS-(wet weight - dry weight)/wet weight
Lens is measured before and after drying in
oven
Hand held refractometer* measures strong
content (water content material = 100% - stable
content material)
= pHEMA (gentle)
(fabric chemistry) - ANS-PMMA (inflexible)
+
hydroxyl organizations (OH) to increase
hydrophilicity
=
?
Four capabilities of Cl answers - ANS-1. Disinfect/Clean - preservatives kill/inhibit
2. Enhance floor wettability
3. Keep lens hydrated
four. Mechanical buffer between lens and
cornea
Acanthamoeba keratitis - ANS-Radial keratoneuritis
, Excruciating pain but eye doesnt look terrible
-train pt to live far from water with CLs
Acuvue Transitions - ANS--need UV light to darken the lens
-doesnt paintings well in car b/c solar is blocked from above
Adaptation symptoms (neophyte) - ANS-ALL MILD:
Discomfort
Tearing; FB sensation
Increased blinking
Intermittent blurry imaginative and prescient
Redness
Light sensitivity
Ant. Segment Evaluation for CL headaches - ANS-Slit lamp exam:
Consistent with preceding education
Addition of evaluation of ALL tarsal plates
Vital dyes for assessment of ocular surface
integrity
Aqueous poor dry eye - ANS-Sjogren's Syndrome
LASIK
Medications
Chemotherapy/Radiation
Lacrimal gland inflammation
-tx:
systane and systane extremely
optive and refresh
theratears
aspheric contact lenses - ANS-Anterior surface spherical
+
posterior floor aspheric (elliptical,
parabolic, hyperbolic)
= increasing plus energy in periphery
ATR - ANS-- toric cornea pools inside the horizontal meridian
Avoiding CL complications - ANS-Compliance and CL Case History
How regularly do you put on your lenses
overnight?
Tell me what you do along with your lenses/case at
night
Tell me what you do along with your lenses/case in
the morning
How regularly do you replace your case?
Topping off solutions
, Disinfection homes reduced if answer isn't replaced
Avoiding CL headaches - ANS-No water on lenses ever
Case: ****
Replace each three to six months
Wipe with tissue
Store caps the wrong way up
averting CL complications - ANS-Practitioner Factors:
Look for dry eye, lid problems, different ocular
issues BEFORE you suit
Prescribe an APPROVED carrying time table
Prescribe a care/cleaning routine
Educate at each visit
Make sure you be aware of the fit
again floor SCL - ANS-monocurve, bicurve, or aspheric
Also sagittal intensity (sag) or
vault
Much flatter than K because of large diameter.
Range: eight.00 to nine.20 mm
Usually 2 BCR alternatives
Custom are available
bacterial keratitis - ANS-FBS not resolved with lens elimination
Pain, crimson, swollen, tearing, photophobic,
loss of vision
Scrape/culture prior to remedy
Appropriate antibiotic
Benzalkonium Chloride (BAK) - ANS-Wide spectrum of micro organism and fungi
Only GP solutions
benzyl alcohol - ANS-Both disinfectant and anti-lipid***
Biguanides (PHMB) - ANS--Biotrue (additionally carries polyquad)
-ReNu Fresh; ReNu Sensitive
-Complete MPS Easy Rub
-ClearCare/ClearCarePlus
/AOSEPT
Boston simplus - ANS--non abrasive GP answer
-exact for excessive Dk lenses
Calculi, jelly bumps - ANS--on SCLs handiest
-mixture of deposits
