The effect of different thickness scleral lens on corneal parameters in eyes with keratoconus

Simple item page
dc.contributor.authorIqbal, Asifen_US
dc.contributor.authorThomas, Rinuen_US
dc.contributor.authorMahadevan, Rajeswarien_US
dc.date.accessioned2023-08-25T06:35:30Z
dc.date.available2023-08-25T06:35:30Z
dc.date.issued2022-12
dc.description.abstractPurpose: To investigate the impact of different?thickness scleral lenses (SLs) on corneal thickness, curvature, and fluid reservoir thickness in keratoconic eyes. Methods: Schiempflug imaging and AS?OCT was captured before and immediately following 6 h of SL wear. Different?thickness lenses were used while keeping the other parameters the same. The timing of the measurement for day 1 and day 2 was matched to allow for the control of the confounding influence of diurnal variation. Results: Immediately after 6 h of lens wear, no statistically significant difference (P > 0.05) was noted in corneal edema in any region and quadrants between thin? and thick?lens wearers. The calculated percentage of corneal edema was also within the range of overnight closed eye physiological swelling. Pentacam measured higher central corneal thickness compared to AS?OCT in both baselines and after 6 h of lens wear. The current investigation reported minimal but not statistically significant (P > 0.05) flattening in anterior and steepening in posterior curvature parameters in both thin and thick SLs. The mean reduction in the fluid reservoir thickness was 80.00 ± 3.99 and 79.36 ± 3.84 microns after 6 h of thin? and thick?lens wear, respectively, which was not statistically significant (P > 0.05). A statistically significant positive correlation (r = 0.67, P = 0.02) was found between lens thickness and change in anterior steep k with thick?lens wear. Conclusion: Central lens thickness of 200–400 ?m did not cause any significant change in corneal curvature and fluid reservoir thickness and did not induce clinically significant corneal edema after short?term SL wear.en_US
dc.identifier.affiliationsDepartment of Contact Lens, Sankara Nethralaya, Unit of Medical Research Foundation, Chennai, Tamil Nadu, Indiaen_US
dc.identifier.citationIqbal Asif, Thomas Rinu, Mahadevan Rajeswari. The effect of different thickness scleral lens on corneal parameters in eyes with keratoconus. Indian Journal of Ophthalmology. 2022 Dec; 70(12): 4251-4256en_US
dc.identifier.issn1998-3689
dc.identifier.issn0301-4738
dc.identifier.placeIndiaen_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/224731
dc.languageenen_US
dc.publisherAll India Ophthalmological Societyen_US
dc.relation.issuenumber12en_US
dc.relation.volume70en_US
dc.source.urihttps://doi.org/10.4103/ijo.IJO_1309_22en_US
dc.subjectCorneal curvatureen_US
dc.subjectcorneal edemaen_US
dc.subjectfluid reservoir thicknessen_US
dc.subjectkeratoconusen_US
dc.subjectlens thicknessen_US
dc.subjectscleral lensen_US
dc.titleThe effect of different thickness scleral lens on corneal parameters in eyes with keratoconusen_US
dc.typeJournal Articleen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
IJO2022v70n12p4251.pdf
Size:
1.66 MB
Format:
Adobe Portable Document Format
Download
Collections
Indian Journal of Ophthalmology