ArticleOphthalmology and therapy2024
Preoperative Structural Risk Factors for Glaucoma After Penetrating Keratoplasty for Congenital Corneal Opacity: An Observational Study.
Article in Ophthalmology and therapy, 2024. 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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Abstract
introductionPost-keratoplasty glaucoma (PKG) is a major complication following penetrating keratoplasty (PKP) for congenital corneal opacity (CCO). This study aims to assess the preoperative structural risk factors for PKG following PKP for CCO using ultrasound biomicroscopy (UBM).
methodsPediatric patients with CCO who underwent preoperative UBM and primary PKP were enrolled. Patients with anterior segment operation history or with a follow-up duration less than 12 months were excluded. The structural features of the anterior segment including central corneal thickness, anterior chamber depth, angle closure range (ACR), anterior synechia range, maximum iridocorneal adhesion length, abnormal iridocorneal synechia, and lens anomalies were identified on UBM images. The medical histories were reviewed to identify clinical features. The incidence of PKG was assessed to determine significant structural and clinical risk factors.
resultsFifty-one eyes of 51 pediatric patients with CCO were included. The median age at surgery was 8.0 months, and the mean follow-up duration was 33 ± 9 months. Eleven (21.6%) eyes developed PKG. The main structural risk factors were abnormal iridocorneal synechia (P = 0.015), lens anomaly (P = 0.001), and larger ACR (P = 0.045). However, a larger range of normal anterior synechia without involvement of the angle was not a significant risk factor. Preoperative glaucoma (P < 0.001) and higher intraocular pressure (P = 0.015) were clinical risk factors. A shallow anterior chamber was a unique risk factor for sclerocornea (P = 0.019).
conclusionsDetailed preoperative examination of iridocorneal synechia, lens, and angle closure using UBM is critical for PKG risk assessment, surgical prognosis evaluation, and postoperative management in patients with CCO.
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