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  • Prognostic factors for visual acuity in patients with LHON after gene therapy

Prognostic factors for visual acuity in patients with LHON after gene therapy
Reviewed by Ivan Yip

5 February 2020 | Ivan Yip | EYE - Vitreo-Retinal

This retrospective study investigates prognostic factors affecting the visual acuity after a single intravitreal injection of rAAV2-ND4 gene therapy in 53 patients with Leber’s hereditary optic neuropathy (LHON) with mutation at site 11 778. Patients were reviewed one and three months after treatment and divided into improvement and non-improvement groups, with best-corrected visual acuity (BCVA) improvement ≥ 0.3 logMAR defined as improvement. Sex, onset age, duration of disease, BCVA, visual field index (VFI) and mean deviation (MD) were recorded at baseline. Correlation between BCVA prognosis and baseline characteristics were analysed by univariate analysis. Logistic regression analysis was performed on independent factors affecting BCVA. Only greater baseline VFI and better baseline BCVA predicted better visual acuity prognosis post gene therapy.

Prognostic factors for visual acuity in patients with Leber’s hereditary optic neuropathy after rAAV2-ND4 gene therapy.
Zhang Y, Li X, Yuan J, et al.
CLINICAL AND EXPERIMENTAL OPHTHALMOLOGY
2019;47:774-8.
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Ivan Yip

Alder Hey Children's Hospital, Liverpool, UK.

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