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Unilateral Corneal Ectasia After Bilateral Transepithelial Photorefractive Keratectomy.
Cureus
December 2024
Department of Ophthalmology, The University of Jordan, Amman, JOR.
We present the case of a 23-year-old male who experienced vision loss in his left eye 15 months after undergoing bilateral transepithelial photorefractive keratectomy (T-PRK). Despite the absence of any significant preoperative topographical risk factors in either eye, corneal ectasia was later confirmed in the left eye, while the right eye remained normal. Subtle asymmetry in topometric indices and a borderline high Index of vertical asymmetry (IVA) reading suggested the possibility of early subclinical keratoconus, potentially increasing the risk of post-refractive ectasia.
View Article and Find Full Text PDFSuperior Keratoconus in Attention-Deficit Hyperactivity Disorder (ADHD): A Case Report and Literature Review.
Cureus
December 2024
Department of Ophthalmology, Shaare Zedek Medical Center, Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, ISR.
Keratoconus is a progressive corneal ectasia that may lead to severe visual impairment. Superior keratoconus (SK) is an uncommon form of the disease, and few cases have been reported thus far. We present an unusual SK case and a literature review of this rare diagnosis.
View Article and Find Full Text PDFA Unique Retinoscopic Reflex Pattern in the Initial Stages of Keratoconus and Its Clinical Significance for Early Keratoconus Detection: A Case Report.
Cureus
November 2024
Department of Optometry, Noor Alyemen Eye and E.N.T Consulting Center, Sana'a, YEM.
Keratoconus is a bilateral eye anomaly in which the cornea develops gradually, becoming steeper and thinner, causing irregular astigmatism and myopia. This unique case report highlights an atypical retinoscopic reflex that can be observed in the initial stages of keratoconus. While the reflex deviates subtly from the normal form, exhibiting a slightly distorted, irregular, and non-scissoring pattern, it differs significantly from the well-documented "scissor reflex," which is characteristic of moderate to advanced stages.
View Article and Find Full Text PDFCharacteristics of corneal aberration in patients with bilateral keratoconus and unilateral corneal Vogt's striae.
Int J Ophthalmol
December 2024
Shaanxi Eye Hospital, Xi'an People's Hospital (Xi'an Fourth Hospital), Affiliated People's Hospital of Northwest University, Xi'an 710004, Shaanxi Province, China.
Aim: To assess the corneal high-order aberration (HOA) and its correlation with corneal morphological parameters in patients with bilateral keratoconus (KCN) and unilateral Vogt's striae.
Methods: A total of 168 eyes of 84 patients with KCN, whose corneas had definite signs of unilateral Vogt's striae, were enrolled. Corneal HOA and morphological parameters were measured using Pentacam HR.
Urrets-Zavalia syndrome (UZS) stands out as a rare yet clinically consequential complication associated with ophthalmic surgery, marked by the emergence of a fixed and dilated pupil. While it was originally described post-penetrating keratoplasty (PKP) in patients with keratoconus and its prevalence is notably higher following PKP, instances of UZS have been documented in the context of other procedures, including intraocular lens implantation, Descemet-stripping endothelial keratoplasty and Descemet membrane endothelial keratoplasty (DMEK). We report a unique case of bilateral UZS after uneventful DMEK surgeries, highlighting a rare but potential complication after DMEK.
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