Dichoptic training in adults with amblyopia: Additional stereoacuity gains over monocular training
| Autor: | Xiang-Yun Liu, Jun-Yun Zhang |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Adult
Male Visual perception Visual acuity media_common.quotation_subject Visual Acuity Amblyopia Young Adult 03 medical and health sciences 0302 clinical medicine Optics Perceptual learning medicine Humans Contrast (vision) media_common Vision Binocular Monocular business.industry Training (meteorology) Association Learning Sensory Systems Stereoscopic acuity Ophthalmology Visual Perception 030221 ophthalmology & optometry Optometry Female medicine.symptom business Psychology Binocular vision 030217 neurology & neurosurgery |
| Zdroj: | Vision Research. 152:84-90 |
| ISSN: | 0042-6989 |
| DOI: | 10.1016/j.visres.2017.07.002 |
| Popis: | Dichoptic training is a recent focus of research on perceptual learning in adults with amblyopia, but whether and how dichoptic training is superior to traditional monocular training is unclear. Here we investigated whether dichoptic training could further boost visual acuity and stereoacuity in monocularly well-trained adult amblyopic participants. During dichoptic training the participants used the amblyopic eye to practice a contrast discrimination task, while a band-filtered noise masker was simultaneously presented in the non-amblyopic fellow eye. Dichoptic learning was indexed by the increase of maximal tolerable noise contrast for successful contrast discrimination in the amblyopic eye. The results showed that practice tripled maximal tolerable noise contrast in 13 monocularly well-trained amblyopic participants. Moreover, the training further improved stereoacuity by 27% beyond the 55% gain from previous monocular training, but unchanged visual acuity of the amblyopic eyes. Therefore our dichoptic training method may produce extra gains of stereoacuity, but not visual acuity, in adults with amblyopia after monocular training. |
| Databáze: | OpenAIRE |
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