Ocular vestibular evoked myogenic potentials in different types of amblyopia.

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Tác giả: Samira Hassanzadeh, Sadegh Jafarzadeh, Mohammad Yaser Kiarudi, Masoud Rostami, Mahdi Sharifi

Ngôn ngữ: eng

Ký hiệu phân loại:

Thông tin xuất bản: United States : Clinical & experimental optometry , 2025

Mô tả vật lý:

Bộ sưu tập: NCBI

ID: 735328

CLINICAL RELEVANCE: The visual system plays an important role in the development of the vestibular-ocular reflex (VOR). In clinical practice, the ocular vestibular evoked myogenic potential (oVEMP) test is used to assess contralateral VOR. BACKGROUND: This study sought to compare the oVEMP in patients with anisometropic, strabismic, and mixed amblyopia using unilateral and bilateral (simultaneous binaural) stimulation. METHODS: Forty-two amblyopic patients (20 males and 22 females) with a mean age of 10.48 ± 4.00 years (range: 5 - 20 years) were examined. The Titmus stereopsis test, alternate cover test, and best-corrected visual acuity were evaluated. Patients were divided into three groups: anisometropic, strabismic, and mixed amblyopia. The oVEMP responses including the amplitude of electrical activity (n1-p1 complex) and the latencies (n1 and p1) of the VOR responses were recorded under unilateral and bilateral stimulations. RESULTS: In the anisometropic and strabismic group, n1 latency was significantly faster in the non-amblyopic eyes compared to amblyopic eyes (Z = -2.04, CONCLUSION: Regardless of its type, amblyopia affects vestibular-ocular reflex responses. Further research is warranted to clarify the effect of the disease and its treatment on the ocular-vestibular system.
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