ODP CONTACT LENS FINAL EXAM QUESTIONS AND CORRECT VERIFIED ANSWERS|LATEST
2025|100% PASS GUARANTEED
empiral fitting method -CORRECT ANSWER-ordering pts first lens based on measurements
alone
-adv: good vision with first lens
-disadv.: more lens orders
diagnostic fitting method -CORRECT ANSWER-trying on trial lenses to determine best fit and
appropriate power
-adv: may save visits
-disadv: more chair time
Inventory fitting method -CORRECT ANSWER-100-200 lens inventory dispensed at fitting
Advantage = New lenses and replacement lenses can be obtained immediately
Disadvantage = Requires a large, expensive investment and commitment to fitting RGPs
regularly
Note: This is necessary for Orthokeratology
GP fit evaluation -CORRECT ANSWER-Centration
Lid Attached or IP*
Central fluorescein pattern*
Peripheral fluorescein pattern*
Power (Over-refraction)
,centration/position -CORRECT ANSWER-Look at Lens Position
Laterally centered?
Vertically centered?
Over-refraction -CORRECT ANSWER-=Same as a general refraction, but while
wearing a contact lens
Spherical versus Sphero-cylindrical
Loose lenses versus phoropter
Always balance
Remember to vertex if the over-refraction exceeds ± 4.00 D
CL power = −3.00, OR = −0.0 => ? -3.00
CL power = −6.00, OR = −2.00 => ? -8.00
CL power = −3.00, OR = −5.00 => ? vertex: -7.50 to -7.75
SAM/FAP -CORRECT ANSWER-power changes with BCR changes
Steeper Add Minus
Flatter Add Plus
Ex: Power = -3.00, BCR change from
42.00 to 43.00
Steeper by 1.00 D
New power = -3.00 -1.00 = -4.00
Dispensing Visit -CORRECT ANSWER-Check habitual VA
Inquire about Hx change
Instill proparacaine
Insert lenses
,Allow to settle ~10-15 min
Assess visual acuity
Check fit
Over-refraction
Proceed with dispense if...
Acuity and fit are acceptable
Minimal over-refraction
If not, start re-fitting!
Should take 20 minutes or less
-2.75 -CORRECT ANSWER-Steeper Add Minus
Flatter Add Plus
Example: Lens (-3.25 D, BCR = 43.00) is
too steep (central pooling). Flatten by 0.50
D to 42.50 D.
FAP = -3.25 + [ABS(43.00-42.50)] = ?
daily wear -CORRECT ANSWER-worn when awake only
extended wear -CORRECT ANSWER-worn for up to 6+ consecutive days and nights before
overnight removal
consecutive wear -CORRECT ANSWER-worn for up to 20+ consecutive days and nights before
overnight removal
Neophyte (New) follow up: DW -CORRECT ANSWER-Baseline (fitting) examination
Dispensing (3-10 days)
1-2 week follow-up
, 1-3 month follow-up
6 month follow-up visit (as needed)
Yearly examination (& re-fitting)
New Extended/Continuous Wear Follow Up -CORRECT ANSWER-Monitor more closely...
Day 1 (must be am visit)
1-2 week
1-3 months
6 months
Yearly exam
Veteran F/U: DW -CORRECT ANSWER-Yearly Modifications?
Yes, dispensing required
No...6-month check (sometimes) and yearly
exam
Dispensing (3-10 days)
1-2 week follow-up
3-6 month follow-up (as needed)
Yearly exam (& re-fitting)
Education Presentation of GPs -CORRECT ANSWER-Set appropriate expectations
Determine past experiences
Avoid words related to discomfort
Use topical anesthetic!! Maybe prescribe
NSAIDs
General GP Education of Neophytes -CORRECT ANSWER-Insertion, removal, decentration
Cleaning techniques: Dos and Don'ts
2025|100% PASS GUARANTEED
empiral fitting method -CORRECT ANSWER-ordering pts first lens based on measurements
alone
-adv: good vision with first lens
-disadv.: more lens orders
diagnostic fitting method -CORRECT ANSWER-trying on trial lenses to determine best fit and
appropriate power
-adv: may save visits
-disadv: more chair time
Inventory fitting method -CORRECT ANSWER-100-200 lens inventory dispensed at fitting
Advantage = New lenses and replacement lenses can be obtained immediately
Disadvantage = Requires a large, expensive investment and commitment to fitting RGPs
regularly
Note: This is necessary for Orthokeratology
GP fit evaluation -CORRECT ANSWER-Centration
Lid Attached or IP*
Central fluorescein pattern*
Peripheral fluorescein pattern*
Power (Over-refraction)
,centration/position -CORRECT ANSWER-Look at Lens Position
Laterally centered?
Vertically centered?
Over-refraction -CORRECT ANSWER-=Same as a general refraction, but while
wearing a contact lens
Spherical versus Sphero-cylindrical
Loose lenses versus phoropter
Always balance
Remember to vertex if the over-refraction exceeds ± 4.00 D
CL power = −3.00, OR = −0.0 => ? -3.00
CL power = −6.00, OR = −2.00 => ? -8.00
CL power = −3.00, OR = −5.00 => ? vertex: -7.50 to -7.75
SAM/FAP -CORRECT ANSWER-power changes with BCR changes
Steeper Add Minus
Flatter Add Plus
Ex: Power = -3.00, BCR change from
42.00 to 43.00
Steeper by 1.00 D
New power = -3.00 -1.00 = -4.00
Dispensing Visit -CORRECT ANSWER-Check habitual VA
Inquire about Hx change
Instill proparacaine
Insert lenses
,Allow to settle ~10-15 min
Assess visual acuity
Check fit
Over-refraction
Proceed with dispense if...
Acuity and fit are acceptable
Minimal over-refraction
If not, start re-fitting!
Should take 20 minutes or less
-2.75 -CORRECT ANSWER-Steeper Add Minus
Flatter Add Plus
Example: Lens (-3.25 D, BCR = 43.00) is
too steep (central pooling). Flatten by 0.50
D to 42.50 D.
FAP = -3.25 + [ABS(43.00-42.50)] = ?
daily wear -CORRECT ANSWER-worn when awake only
extended wear -CORRECT ANSWER-worn for up to 6+ consecutive days and nights before
overnight removal
consecutive wear -CORRECT ANSWER-worn for up to 20+ consecutive days and nights before
overnight removal
Neophyte (New) follow up: DW -CORRECT ANSWER-Baseline (fitting) examination
Dispensing (3-10 days)
1-2 week follow-up
, 1-3 month follow-up
6 month follow-up visit (as needed)
Yearly examination (& re-fitting)
New Extended/Continuous Wear Follow Up -CORRECT ANSWER-Monitor more closely...
Day 1 (must be am visit)
1-2 week
1-3 months
6 months
Yearly exam
Veteran F/U: DW -CORRECT ANSWER-Yearly Modifications?
Yes, dispensing required
No...6-month check (sometimes) and yearly
exam
Dispensing (3-10 days)
1-2 week follow-up
3-6 month follow-up (as needed)
Yearly exam (& re-fitting)
Education Presentation of GPs -CORRECT ANSWER-Set appropriate expectations
Determine past experiences
Avoid words related to discomfort
Use topical anesthetic!! Maybe prescribe
NSAIDs
General GP Education of Neophytes -CORRECT ANSWER-Insertion, removal, decentration
Cleaning techniques: Dos and Don'ts
