高倍直接检眼镜检查。
High magnification direct ophthalmoscopy.
作者信息
Frisén L
出版信息
Am J Ophthalmol. 1978 Aug;86(2):272-3. doi: 10.1016/s0002-9394(14)76824-2.
PMID:686130
Abstract
The combination of a high minus setting of the ophthalmoscope and an extra positive lens in front of the patient's eye forms a Galilean telescope that increases magnification in direct ophthalmoscopy. The telescope magnification equals the ratio between objective and ocular focal lengths.
摘要
检眼镜的高负镜设置与患者眼前额外的正透镜相结合，形成了一个伽利略望远镜，可增加直接检眼镜检查时的放大倍数。望远镜的放大倍数等于物镜焦距与目镜焦距之比。
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