Background: Previous studies have reported different central corneal thickness (CCT) values in eyes with pseudoexfoliation syndrome (PXS). There has been no report about corneal curvature (CC) in PXS eyes. The aim of this study was to investigate the CCT together with the CC in PXS eyes with and without glaucoma.
Methods: The CC (simulated keratometry 1 [SimK1], SimK2, and mean K) and CCT were prospectively studied by rotating a Scheimpflug camera in 72 PXS eyes and comparing them with 65 normal eyes.
Results: In all PXS eyes, the mean K was significantly steeper than in control eyes (44.1 [SD 1.5] diopters (D) vs. 43.2 [SD 2.0] D, p = 0.04). When PXS eyes were subcategorized, the mean K was significantly steeper in both normotensive PXS eyes (44.6 [SD 1.6] D) and pseudoexfoliation glaucoma (PEXG) eyes (44.0 [SD 1.2] D) than normal eyes (43.2 [SD 2.0] D) (p = 0.001 and 0.02, respectively). In all PXS eyes, the mean CCT (546.4 [SD 39.6] microm) was not significantly different than the control eyes (542.9 [SD 32.2] microm) (p = 0.56). When PXS eyes were subcategorized, however, the CCT was significantly thinner in normotensive PXS eyes and significantly thicker in PEXG eyes.
Interpretation: It appears that PEXG eyes have a significantly steeper CC and higher CCT than normal eyes. This could be of clinical significance because overestimation of true intraocular pressure may then occur in these eyes.
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http://dx.doi.org/10.3129/i07-145 | DOI Listing |
BMC Ophthalmol
September 2024
Department of Ophthalmology, Busan Paik Hospital, Inje University College of Medicine, Busan, Korea.
Purpose: To compare the macular and optic disc vascular parameters in the unaffected fellow eyes of subjects with unilateral pseudoexfoliation syndrome (PXS) and controls using optical coherence tomography angiography (OCTA).
Methods: The medical records of 61 eyes of 61 patients were analyzed in a retrospective study. Of these, 30 eyes were unaffected fellow eyes and 31 eyes were control eyes.
Eye Contact Lens
November 2024
Department of Ophthalmology (Y.C.Y., S.C.H.), Basaksehir Cam Sakura State Hospital, Istanbul, Turkey; Department of Ophthalmology (Y.C.Y., S.C.I.), Agri Ibrahim Cecen University Faculty of Medicine, Agri, Turkey; and Bodrum Gozakademi Private Eye Hospital (S.C.I.), Bodrum, Mugla, Turkey.
Purpose: The aim of the study was to investigate the corneal and anterior segment characteristics in pseudoexfoliation syndrome (PXS), depending on the severity of the disease.
Materials And Methods: This cross-sectional study was conducted at a tertiary care hospital, in the ophthalmology department, in Turkey. Pseudoexfoliation syndrome group was classified into three groups.
J Glaucoma
October 2024
Department of Ophthalmology, Health Sciences University, Haydarpasa Numune Training and Research Hospital.
Prcis: The relationship between anterior scleral thickness (AST) and scleral spur (SS) length was disrupted in eyes with pseudoexfoliation (PX), and SS length was shorter in eyes with pseudoexfoliative glaucoma (PXG).
Objectives: To evaluate AST in eyes with PX and to examine the relationship between AST and Schlemm canal (SC), trabecular meshwork (TM), and SS.
Patients And Methods: Thirty-eight patients with PX syndrome (PXS), 38 patients with PXG, and 38 healthy patients were included in the study.
Graefes Arch Clin Exp Ophthalmol
April 2024
Department of Ophthalmology, Haydarpasa Numune Training and Research Hospital, Health Sciences University, Tibbiye Street Nr 23, Uskudar, Istanbul, 34668, Turkey.
Purpose: To evaluate the effect of uneventful cataract surgery on Schlemm's canal (SC) and the trabecular meshwork (TM) in cases with pseudoexfoliation (PX).
Methods: In this prospective study, 37 PX and 37 normal eyes, who underwent cataract surgery, were included. The PX group was further divided into two subgroups: PX syndrome (PXS) and PX glaucoma (PXG).
J Glaucoma
May 2024
Department of Biostatistics, Kutahya Health Sciences University School of Medicine, Kutahya, Turkey.
Prcis: This study investigated the retinal segmental thicknesses in individuals with pseudoexfoliation syndrome and ocular hypertension. Maximum thinning was found at 6 mm inferior to the inner plexiform layer. This layer is very important for the early diagnosis of glaucoma.
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