Evidence map›Paper›PMID 41400722›Full record

ArticleInternational ophthalmology2025

Corneal epithelial thickness in pseudoexfoliation syndrome: an anterior segment optical coherence tomography study.

Kursat Atalay, Ahmet Ozyigit, Ibrahim Kocak, Nihat Sayın, Sadık Etka Bayramoglu

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Article in International ophthalmology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

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5 authors.

Kursat AtalayEye Clinic, Kanuni Sultan Suleyman Training and Research Hospital, Atakent Mah. Turgut Ozal Blv. Kucukcekmece,, 34303, Istanbul, Turkey. drkursatalay@gmail.com.
Ahmet OzyigitEye Clinic, Kanuni Sultan Suleyman Training and Research Hospital, Atakent Mah. Turgut Ozal Blv. Kucukcekmece,, 34303, Istanbul, Turkey.
Ibrahim KocakEye Clinic, Kanuni Sultan Suleyman Training and Research Hospital, Atakent Mah. Turgut Ozal Blv. Kucukcekmece,, 34303, Istanbul, Turkey.
Nihat SayınEye Clinic, Kanuni Sultan Suleyman Training and Research Hospital, Atakent Mah. Turgut Ozal Blv. Kucukcekmece,, 34303, Istanbul, Turkey.
Sadık Etka BayramogluEye Clinic, Kanuni Sultan Suleyman Training and Research Hospital, Atakent Mah. Turgut Ozal Blv. Kucukcekmece,, 34303, Istanbul, Turkey.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis study aimed to characterize corneal epithelial thickness profiles in pseudoexfoliation syndrome (PXS) patients using AS-OCT and to investigate its correlation with intraocular pressure (IOP).

methodsIn this prospective, cross-sectional study, 27 PXS patients and 26 controls underwent a comprehensive ophthalmologic examination. Corneal epithelial and total thickness were measured in central, 0-2 mm, 2-5 mm, and 5-7 mm zones using Carl Zeiss Cirrus 5000 HD-OCT. Statistical comparisons and correlations were performed.

resultsMean IOP was significantly higher in PXS patients (17.8 ± 6.9 mmHg) versus controls (14.0 ± 3.8 mmHg; p = 0.01). Central corneal thickness (CCT) was also significantly greater in PXS eyes (536.33 ± 33.62 µm) compared to controls (515.19 ± 30.16 µm; p = 0.02), with similar significant differences across all pachymetry zones. Stromal plus endothelial thickness was significantly higher in PXS centrally (p = 0.04), in the 0-2 mm (p = 0.03) and 5-7 mm (p = 0.02) zones, but this difference was non-significant in the 2-5 mm zone (p = 0.09). Crucially, epithelial thickness measurements across all zones showed no significant differences between groups (all p > 0.05). Similarly, epithelial thickness ratios to total corneal and stromal plus endothelial thickness remained unchanged (all p ≥ 0.05). While IOP was significantly positively correlated with total corneal thickness in both groups, no significant correlation was found between IOP and epithelial thickness (all p > 0.05).

conclusionDespite increased overall corneal thickness and IOP, corneal epithelial thickness profiles in PXS remained stable. Our results suggest that the PXS may primarily affect the deeper layers (stroma and endothelium) and that the epithelial layer maintains structural integrity. This is clinically relevant, as a stable epithelium may help differentiate PXS-related keratopathy from other anterior segment disorders and may guide clinicians to focus on the underlying stromal and endothelial health for diagnosis and surgical planning.

Indexed as

Anterior Eye SegmentEpithelium, CornealExfoliation SyndromeIntraocular PressureTomography, Optical CoherenceAgedCorneal PachymetryCross-Sectional StudiesFemaleHumansMaleMiddle AgedProspective StudiesAnterior segment optical coherence tomographyCorneal epithelial thicknessCorneal pachymetryIntraocular pressurePseudoexfoliation syndrome

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.