Purpose: To evaluate the changes in retinal vascularity in patients with severe psoriasis.
Materials And Methods: Patients with severe psoriasis [psoriasis area-severity index (PASI) >10] who did not get any systemic treatment in the last year and do not have any ocular diseases were included. All patients underwent detailed ophthalmological examination, including optical coherence tomography (OCT) and OCT angiography (OCTA). Vessel densities (VD) of Superficial (SCP) and deep (DCP) capillary plexus, foveal avascular zone (FAZ) diameter, central retinal thickness (CRT) were analyzed and compared with age-sex matched healthy adults.
Results: Fifty-three patients (13 F, 40 M) and 56 controls (16 F, 40 M) were included in the study. VD of SCP (50.4%±3.9 vs. 51.4%±3.2) and DCP (52.6%±6.4 vs. 55.4%±5.7) were lower in psoriasis group compared to controls ( < .05). Presence of psoriatic arthritis was related with an increased CRT ( = .000), larger FAZ and decreased foveal VD in SCP ( = .01, = .02, respectively).
Conclusion: Severe psoriasis causes a decrease in retinal blood flow and presence of psoriatic arthritis is related with decreased foveal VD.
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http://dx.doi.org/10.1080/09273948.2023.2166536 | DOI Listing |
Am J Ophthalmol
January 2025
Department of Ophthalmology and Visual Sciences, Kellogg Eye Center, University of Michigan, Ann Arbor, MI. Electronic address:
Purpose: To summarize and categorize postulated mechanisms of immune checkpoint inhibitor (ICI)-mediated retinal and choroidal inflammation and discuss resulting implications for evaluation and management of these adverse reactions.
Design: Targeted literature review with interpretation and perspective Methods: We performed a review of selected literature describing immune-mediated retinal and choroidal adverse reactions associated with ICI therapy, synthesizing and categorizing the likely underlying pathogenic mechanisms. Based on these mechanistic categories, we provide perspective on a rational approach to the evaluation of patients with ICI-associated inflammatory disorders of the retina and choroid.
Anat Histol Embryol
January 2025
Department of Biochemistry, Yozgat Bozok University, Faculty of Veterinary Medicine, Yozgat, Turkey.
This study aimed to investigate the macroscopic, light microscopic (LM) and scanning electron microscopic (SEM) characteristics of the pecten oculi in common kestrels (Falco tinnunculus). A total of six eyeballs from three common kestrels were used as the study material. The examination revealed that the bulbus oculi was spherical in shape and its diameter exceeded the axial-global length.
View Article and Find Full Text PDFBr J Ophthalmol
January 2025
Department of Neurosciences, Imaging and Clinical Sciences, University "G. d'Annunzio" Chieti-Pescara, Chieti, Italy.
Purpose: To quantitatively explore preretinal abnormal tissue (PAT) in macula-on rhegmatogenous retinal detachment (RRD) before and after surgery.
Methods: In this case-series study, PAT was detected by en-face optical coherence tomography images with custom slabs in eyes that underwent pars plana vitrectomy and SF6 for macula-on RRD.Main outcome measures were PAT area at baseline, 3-month and 6-month follow-up, and its relative change.
Retin Cases Brief Rep
December 2024
Department of Ophthalmology, Hospital de Clínicas, University of Buenos Aires, Buenos Aires, Argentina.
Purpose: to report optical coherence tomography angiography findings in syphilitic outer retinopathy, a singular clinical manifestation of ocular syphilis.
Methods: case report.
Results: Multimodal imaging including optical coherence tomography angiography was performed in a patient presenting syphilitic outer retinopathy.
Drug Deliv Transl Res
January 2025
Pharmaceutical Research and Development, Ezequiel Dias Foundation, Rua Conde Pereira Carneiro 80, Gameleira, Belo Horizonte, CEP 30510-010, Minas Gerais, Brazil.
Current treatments for retinal disorders are anti-angiogenic agents, laser photocoagulation, and photodynamic therapies. These conventional treatments focus on reducing abnormal blood vessel formation in the retina, which, in a low-oxygen environment, can lead to harmful proliferation of endothelial cells. This results in dysfunctional, leaky blood vessels that cause retinal edema, hemorrhage, and vision loss.
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