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Case Studies for February 13 Online Symposium
GP Lens Problem-Solving
with Dr. Edward S. Bennett |
Case One
SUBJECTIVE DATA: A 32-year-old woman complains of decreased wearing time over past few weeks. It is accompanied by redness in the temporal quadrant
in each eye after 2 - 3 hours of wear. She has reduced from 16 hours to 8 hours of wear and the lenses do not feel comfortable.
OBJECTIVE DATA:
Visual Acuity (with CLs): 20/20 OD, OS, OU
Manifest Refraction: -5.50 - 1.25 X 180 OU
Keratometry: 41.25 @ 180; 42.25 @ 090 OU
Lens Material/Design:
- Fluoroperm 60; BCR: 8.23mm
- Power: -5.00D; OAD/OZD: 9.6/8.2mm
- SCR/W: 9.60/.3; PCR/W: 12.00/.4mm
- CT: .15mm
Questions???
Management???
Case Two
SUBJECTIVE DATA: A 15-year-old female is asymptomatic and is in the office for a one-month evaluation of her GPs.
OBJECTIVE DATA:
Visual Acuity (with CLs): 20/30+1 OD, 20/25-1 OS
Manifest Refraction:
- -2.50 - 1.00 X 175 OD 20/25
- -3.00 - 0.75 x 010 OS 20/25
Keratometry:
- 42.25 @ 180; 43.25 @ 090 OD
- 42.50 @ 180; 43.25 @ 090 OS
Lens Material/Design: Boston ES
|
OD |
OS |
| BCR |
8.04mm |
7.99mm |
| Power |
-2.25D |
-2.75D |
| OAD/OZD |
9.4/8.0mm |
9.4/8.0mm |
| SCR/W |
8.80/.3mm |
8.80/.3mm |
| ICR/W |
9.80/.2mm |
9.80/.2mm |
| PCR/W |
11.20/.2mm |
11.20/.2mm |
| CT |
.16mm |
.15mm |
SLE: Good centration and alignment fitting relationship OU
Questions???
Management???
Case Three
SUBJECTIVE DATA: A 19-year-old male has symptoms of dryness and some fluctuation of vision in both eyes. He has been a three-year wearer of
GPs and has had the current pair for one year.
OBJECTIVE DATA:
Visual Acuity (with CLs): 20/25+1 OD, 20/20-1 OS (fluctuates)
Manifest Refraction:
- -3.50 - 2.00 X 172 OD 20/25
- -3.75 - 1.75 x 007 OS 20/25
Lens Material/Design: Fluorex 700
|
OD |
OS |
| BCR |
7.76mm |
7.71mm |
| Power |
-4.25D |
-4.50D |
| OAD/OZD |
9.4/8.0mm |
9.4/8.0mm |
| SCR/W |
9.20/.3mm |
9.20/.3mm |
| PCR/W |
12.00/.4mm |
12.0/.4mm |
| CT |
.15mm |
.15mm |
SLE: (all OU)
- Inferior decentration
- Grade 2+ corneal desiccation temporally; grade 1+ nasally
Questions???
Management???
Case Four
SUBJECTIVE DATA: A 17-year-old female indicated mild dryness with her six-month GPs.
OBJECTIVE DATA:
Visual Acuity (with CLs): 20/20 OD, 20/20+2 OS
Manifest Refraction:
- -4.50 - 1.50 X 163 OD 20/25-2
- -5.00 - 1.75 x 022 OS 20/25-1
Keratometry:
- 42.25 @ 165; 43.50 @ 072 OD
- 42.50 @ 025; 43.75 @ 112 OS
Lens Material/Design: Boston ES
|
OD |
OS |
| BCR |
8.08mm |
8.04mm |
| Power |
-3.75D |
-4.25D |
| OAD/OZD |
9.6/8.2mm |
9.6/8.2mm |
| SCR/W |
8.80/.3mm |
8.80/.3mm |
| ICR/W |
9.80/.2 mm |
9.80/.2mm |
| PCR/W |
11.20/.2mm |
11.20/.2mm |
| CT |
.11mm |
.11mm |
Corneal Topography: Superiorally decentered apex
SLE: Superior decentration OU
Questions???
Management???
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