Aberration change after scleral lens wear in eyes with pellucid marginal degenerations

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dc.contributor.authorDutta, Roniten_US
dc.contributor.authorIyer, Geethaen_US
dc.contributor.authorSrinivasan, Bhaskaren_US
dc.contributor.authorIqbal, Asifen_US
dc.date.accessioned2025-05-09T09:49:13Z
dc.date.available2025-05-09T09:49:13Z
dc.date.issued2024-07
dc.description.abstractPurpose: To investigate the impact of scleral lenses (SLs) on higher?order aberrations (HOAs), corrected distance visual acuity (CDVA), and contrast sensitivity (CS) in pellucid marginal degeneration (PMD) eyes. Methods: SLs were fitted in 24 eyes diagnosed with PMD. CDVA, CS, and HOAs were measured at baseline and with the lens on the eye. The HOAs were measured using an i?Trace aberrometer. Results: A statistically significant improvement was noted in CDVA (P < 0.001) with BSS lenses (0.05 ± 0.04) compared to baseline (0.42 ± 0.06). Front surface eccentricity 1 (FSE1) lens provided the best CDVA in most of the eyes. The baseline CS of 1.24 ± 0.74 improved to 1.58 ± 0.48 with SL and reported a statistically significant improvement (P < 0.001) and a gain of 6 letters. The baseline higher order?root mean square (HO?RMS) was 0.89 ± 0.53 ?m, which reduced to 0.38 ± 0.24 ?m (P < 0.001), and RMS coma of 0.45 ± 0.29 ?m improved to 0.20 ± 0.12 ?m (P < 0.001). Though there was a marginal reduction from 0.04 ± 0.14 to 0.03 ± 0.07, RMS spherical aberration did not show any statistically significant difference (P = 0.37). RMS secondary astigmatism reduced from 0.17 ± 0.15 ?m to 0.08 ± 0.12 ?m (P = 0.007), and RMS trefoil reduced to 0.13 ± 0.09 ?m from 0.64 ± 0.36 ?m (P < 0.001) with SLs and showed statistically significant improvement. Conclusion: SLs can be considered an effective option that corrects a significant amount of HOAs and enhances visual performances in PMD eyes.en_US
dc.identifier.affiliationsDepartment of Contact Lens, Sankara Nethralaya, Unit of Medical Research Foundation, Chennai, Tamil Nadu, Indiaen_US
dc.identifier.affiliationsCJ Shah Cornea Services, Sankara Nethralaya, Unit of Medical Research Foundation, Chennai, Tamil Nadu, Indiaen_US
dc.identifier.affiliationsCJ Shah Cornea Services, Sankara Nethralaya, Unit of Medical Research Foundation, Chennai, Tamil Nadu, Indiaen_US
dc.identifier.affiliationsDepartment of Contact Lens, Sankara Nethralaya, Unit of Medical Research Foundation, Chennai, Tamil Nadu, Indiaen_US
dc.identifier.citationDutta Ronit, Iyer Geetha, Srinivasan Bhaskar, Iqbal Asif. Aberration change after scleral lens wear in eyes with pellucid marginal degenerations. Indian Journal of Ophthalmology. 2024 Jul; 72(7): 1037-1042en_US
dc.identifier.issn0301-4738
dc.identifier.issn1998-3689
dc.identifier.placeIndiaen_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/245005
dc.languageenen_US
dc.publisherWolters Kluwer – Medknowen_US
dc.relation.issuenumber7en_US
dc.relation.volume72en_US
dc.source.urihttps://doi.org/10.4103/IJO.IJO_1820_23en_US
dc.subjectContrast sensitivityen_US
dc.subjecthigher?order aberrationen_US
dc.subjectpellucid marginal degenerationen_US
dc.subjectscleral lensen_US
dc.subjectvisual acuityen_US
dc.titleAberration change after scleral lens wear in eyes with pellucid marginal degenerationsen_US
dc.typeJournal Articleen_US
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