This review provides an overview of conventional and novel retinal imaging modalities for hydroxychloroquine (HCQ) retinopathy. HCQ retinopathy is a form of toxic retinopathy resulting from HCQ use for a variety of autoimmune diseases, such as rheumatoid arthritis and systemic lupus erythematosus. Each imaging modality detects a different aspect of HCQ retinopathy and shows a unique complement of structural changes. Conventionally, spectral-domain optical coherence tomography (SD-OCT), which shows loss or attenuation of the outer retina and/or retinal pigment epithelium-Bruch's membrane complex, and fundus autofluorescence (FAF), which shows parafoveal or pericentral abnormalities, are used to assess HCQ retinopathy. Additionally, several variations of OCT (retinal and choroidal thickness measurements, choroidal vascularity index, widefield OCT, en face imaging, minimum intensity analysis, and artificial intelligence techniques) and FAF techniques (quantitative FAF, near-infrared FAF, fluorescence lifetime imaging ophthalmoscopy, and widefield FAF) have been applied to assess HCQ retinopathy. Other novel retinal imaging techniques that are being studied for early detection of HCQ retinopathy include OCT angiography, multicolour imaging, adaptive optics, and retromode imaging, although further testing is required for validation.
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http://dx.doi.org/10.3390/diagnostics13101752 | DOI Listing |
J Clin Med
December 2024
Department of Ophthalmology and Visual Science, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea.
Although hydroxychloroquine (HCQ) is used to treat systemic lupus erythematosus (SLE), it is associated with retinal toxicity. Early diagnosis can prevent the further progression of HCQ-associated retinopathy by discontinuing HCQ treatments. This study aimed to evaluate the early diagnostic parameters in patients with SLE treated with HCQ and identify the best approach using multifocal electroretinography (mfERG) and swept-source optical coherence tomography (SS-OCT) to reflect subclinical retinal toxicity.
View Article and Find Full Text PDFBMJ Open Ophthalmol
December 2024
Faculty of Life Sciences and Medicine, King's College London, London, UK.
Introduction: Annual screening for hydroxychloroquine (HCQ) retinopathy is recommended, and electroretinography (ERG) is considered a gold-standard test, but there are screening shortfalls and standard ERG is burdensome and has limited availability. Newer, portable ERG devices using skin-based electrodes may increase screening capacity but need validation. This study aims to determine initial device accuracies and feasibility of further research.
View Article and Find Full Text PDFRetin Cases Brief Rep
December 2024
Retinal Disorders and Ophthalmic Genetics Division, Stein Eye Institute, University of California Los Angeles, David Geffen School of Medicine at UCLA, Los Angeles, California, United States.
Purpose: To report a case of hydroxychloroquine (HCQ) retinopathy after long-term exposure in a 23-year-old male.
Methods: Multimodal imaging including fundus photography, fundus autofluorescence (FAF), spectral domain optical coherence tomography (SD-OCT), and en face OCT were performed, in addition to functional testing with full-field electroretinography (ERG) and Humphrey visual field (HVF).
Results: A 23-year-old man with a history of juvenile systemic lupus erythematosus and HCQ treatment for 13 years at a dosage of 200 mg/d (cumulative dose: 949 grams) presented to the retinal clinic (DS).
Cutan Ocul Toxicol
December 2024
Poostchi Ophthalmology Research Center, Department of Ophthalmology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
Purpose: To assess changes in the thickness of macular sublayers in individuals taking hydroxychloroquine (HCQ) without any evident toxicity and to review the relevant literature.
Methods: This prospective case-control study examined 47 adults on HCQ without evident toxicity on spectral-domain optical coherence tomography (SD-OCT) and visual field tests, as well as 25 healthy controls. Macular thickness in different sublayers was measured using SD-OCT.
Chin J Integr Med
January 2025
Department of Ophthalmology, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, 100010, China.
For HCQ retinopathy with CME, acupuncture combined with periocular injection can be used to improve the CME and protect the central vision. Subsequent research endeavors involving a more extensive cohort and extended observation periods are warranted to evaluate the effectiveness and safety profile of the intervention.
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