PURPOSE: Normobaric hyperoxia (NBH) has been shown in animal models of experimental retinal detachment (RD) to effectively prevent photoreceptor degeneration. Furthermore, choroidal hyperpermeability has been implicated in the disease pathophysiology. In this study, we studied the effects of 3-hours of 40% FIO2 NBH on photoreceptor morphology and visual acuity in patients with vision loss associated with active central serous chorioretinopathy (CSCR).
MATERIALS and METHODS: A total of 8 patients with active unilateral CSCR received at least one 3-hour NBH (40% FIO2) session. Best corrected visual acuity (BCVA) as well as thickness of the central macula, subretinal fluid (SRF), photoreceptor layer (PL), and outer nuclear layer (ONL) were assessed.
RESULTS: In patients with unilateral acute CSCR, 3 hours of 40% FIO2 NBH showed a trend towards improved vision, but no statistical differences were obtained for BCVA, CMT, SRF, PL, or ONL.
CONCLUSIONS: Administration of 3-hours of NBH did not induce any measurable anatomic changes in the retina nor any significant changes in visual acuity. These results challenge the hypothesis of choroidal hyperpermeability in CSCR and suggest that additional or alternative pathologies contribute to this disease. / 2022-11-29T00:00:00Z
| Identifer | oai:union.ndltd.org:bu.edu/oai:open.bu.edu:2144/43476 |
| Date | 29 November 2021 |
| Creators | Najem, Mortada Salman |
| Contributors | Trinkaus-Randall, Vickery E., Arroyo, Jorge G. |
| Source Sets | Boston University |
| Language | en_US |
| Detected Language | English |
| Type | Thesis/Dissertation |
| Rights | Attribution 4.0 International, http://creativecommons.org/licenses/by/4.0/ |
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