Purpose: To report our findings in a case of lens fragment-induced uveitis associated with supernormal flicker electroretinograms (ERGs) twenty months after the cataract surgery.
Methods: This is an observational case report. Full-field flicker ERGs were recorded with the RETeval system. Optical coherence tomography (OCT) and slit-lamp biomicroscopy were used to assess the uveitis during the follow-up period.
Results: A 70-year-old man, who had undergone cataract surgery 20 months earlier, visited our hospital with a complaint of decreased vision in his right eye. Slit-lamp biomicroscopy revealed corneal edema and a lens fragment was detected in the inferior part of the anterior chamber. OCT showed cystoid macular edema, and flicker ERGs showed a marked increase in the amplitude and a delay in the implicit time in the right eye. These abnormalities of the flicker ERGs improved gradually after the removal of lens fragment and application of topical anti-inflammatory medications.
Conclusion: Our case of lens-induced uveitis had supernormal flicker ERG amplitudes. Clinicians should be aware that eyes with uveitis can have larger-than-normal ERG amplitudes.
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http://dx.doi.org/10.1007/s10633-020-09786-9 | DOI Listing |
Hum Mol Genet
March 2022
Department of Biochemistry and Molecular Biology, University of Iowa, Iowa, IA 52252, USA.
Heteromeric Kv2.1/Kv8.2 channels are voltage-gated potassium channels localized to the photoreceptor inner segment.
View Article and Find Full Text PDFDoc Ophthalmol
April 2021
Department of Ophthalmology, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan.
Purpose: To report our findings in a case of lens fragment-induced uveitis associated with supernormal flicker electroretinograms (ERGs) twenty months after the cataract surgery.
Methods: This is an observational case report. Full-field flicker ERGs were recorded with the RETeval system.
Doc Ophthalmol
December 2020
Department of Ophthalmology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, 173-82 Gumi-ro, Bundang-gu, Seongnam-Si, Gyeonggi-do, 13620, South Korea.
Purpose: To determine whether normal to supernormal 30-Hz flicker ERGs are associated with visual function and prognosis in patients with central retinal artery occlusion (CRAO).
Methods: A total of 133 patients diagnosed with unilateral acute non-arteritic CRAO by examination with electroretinography (ERG) were examined. Thirty-hertz flicker ERG amplitudes were analyzed according to the severity of CRAO, and their correlation with visual function and prognosis was assessed.
Invest Ophthalmol Vis Sci
May 2020
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Purpose: To determine the influence of RIBEYE deletion and the resulting absence of synaptic ribbons on retinal light signaling by electroretinography.
Methods: Full-field flash electroretinograms (ERGs) were recorded in RIBEYE knock-out (KO) and wild-type (WT) littermate mice under photopic and scotopic conditions, with oscillatory potentials (OPs) extracted by digital filtering. Flicker ERGs and ERGs following intravitreal injection of pharmacological agents were also obtained under scotopic conditions.
Doc Ophthalmol
August 2020
King Khaled Eye Specialist Hospital, Riyadh, Saudi Arabia.
Purpose: To report the clinical and electrophysiological features of cone dystrophy with supernormal rod response (CDSRR).
Methods: Retrospective cohort study of 15 unrelated patients (nine males and six females, median age 16, range 5-47 years) diagnosed with CDSRR by clinical examination, full-field electroretinography (ERG) and genetic testing.
Observations: History, ophthalmic examination including near vision, color vision and contrast sensitivity assessment, multimodal retinal imaging and ERG.
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