학술논문
Visual Recovery Time in Patients with Ethambutol-induced Toxic Optic Neuropathy
이용수 4
- 영문명
- Visual Recovery Time in Patients with Ethambutol-induced Toxic Optic Neuropathy
- 발행기관
- 대한안과학회
- 저자명
- Hye Rin An Byung Joo Lee Yeji Moon
- 간행물 정보
- 『The Korean Journal of Ophthalmology』Vol.38 No.2, 91~97쪽, 전체 7쪽
- 주제분류
- 인문학 > 역사학
- 파일형태
- 발행일자
- 2024.04.30
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국문 초록
영문 초록
Purpose: We aimed to investigate the visual recovery time in patients with ethambutol-induced toxic optic neuropathy (EON) and identify the factors associated with the visual recovery time.
Methods: In this retrospective cohort study, we reviewed the medical records of 35 eyes from 35 patients with EON. Visual recovery was defined as a gain of three or more lines from the nadir.
Results: Patients were observed following discontinuation of ethambutol (EMB), with the mean follow-up period of 21.0 ± 16.0 months. The visual acuity at nadir was logarithm of the minimum angle of resolution 1.4 ± 0.4, and the final visual acuity was logarithm of the minimum angle of resolution 0.6 ± 0.5. Twenty-seven eyes (77.1%) showed significant visual recovery. In Kaplan-Meier survival, the mean estimated time for visual recovery was 15.2 ± 3.0 months, and 50% of the patients experienced visual recovery at 8.3 ± 2.2 months following EMB discontinuation. Multivariate Cox regression analysis identified several significant risk factors for delayed visual recovery, including duration of EMB medication ≤6 months, period from symptom onset to EMB discontinuation >14 days, and baseline peripapillary retinal nerve fiber layer thickness >98 μm.
Conclusions: Our study indicated a mean time of visual recovery of 15 months for EON cases. Therefore, patients diagnosed with EON should be followed up for more than 1 to 2 years to evaluate their visual recovery. Delayed EMB discontinuation, short duration of EMB use, and initial peripapillary retinal nerve fiber layer thickening were associated with delayed visual recovery. Therefore, patients taking EMB should be followed up regularly for early detection of EON and immediate discontinuation of EMB to prevent severe damage to the optic nerve.
목차
Materials and Methods
Results
Discussion
Supplementary Materials
References
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