Download - Analyze Effects of Multifocal Intraocular Lenses on Potential Acuity Meter and Perimetry Testing
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Analyze Effects of Multifocal Intraocular Lenses on Potential Acuity Meter and Perimetry Testing
G. YuricekAylin Sarac
S.A. Erzurum, MD, FACS
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Financial Interests
The authors have no financial interests in any of the test devices mentioned in this study.
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Purpose:
Evaluate the effectiveness of potential acuity meter (PAM) after multifocal lens implantation.
Evaluate effects of multifocal lenses on visual field testing.
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Methods:
4 types of lenses were evaluated ReSTOR +4, ReSTOR IQ +3,
REZOOM, and monofocal lens Monofocal lenses used were
SA60AT, SN60WF, and Clarflex
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Methods:
All patients underwent visual exam All patients underwent Humphrey
visual field 24-2 on each eye separately.
All patients were evaluated on the PAM.
No dilation was performed on any patient.
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Results:
46 eyes of 23 patients were included in the study.
12 eyes monofocal lenses 10 eyes ReSTOR IQ 12 eyes ReSTOR 12 eyes REZOOM
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Results:
PAM was done on all patients. Only one patient due to small pupils could not perform test.
Remaining 44 eyes all achieved 20/25 visual acuity or better on the PAM testing.
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Humphrey Visual Field: Examples of ring effect
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Visual Field Results: Monofocal Group
8/12 eyes normal visual field 1/12 eyes ring effects 1/12 reduced sensitivity
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Visual Field Results: ReSTOR +4 Group
8/12 eyes normal visual field 3/12 ring effect 1/12 superior visual field defect
attributable to ptosis
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Visual Field Results: ReSTOR IQ Group
8/10 eyes normal visual field 2/10 eyes ring effect
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Visual Field Results: ReZOOM Group
6/12 eyes normal visual fields 5/12 eyes ring effect 1/12 mild superior field defect
attributable to mild ptosis
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Conclusion: PAM Results
Comparing monofocal lenses to ReSTOR, ReSTOR IQ, and ReZOOM lenses appeared to show no differences in results.
Thus, poor PAM results should indicate pathology for decreased visual performance.
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Conclusion: Visual Field
Appeared to be reliable in all groups.
Slight concern that ReZOOM lenses induce a higher incidence of ring effects.
ReSTOR and ReSTOR IQ lens appeared to be equal to monofocal lenses in visual field performance.