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明室检影仪检影法是各种屈光检查法中较为可靠的方法,在临床上仍被广泛应用,但检影必须在暗室进行。目前在一些基层医院里,还没有暗室设备,因而开展检影操作受到了限制。我们利用自制明室检影仪,在明室检影,甚感方便,经过几年的临床实践证明,性能良好,介绍如下,供基层各医院参考。制作方法取硬塑料筒一段,长50cm,内径约40cm。先在筒的一端(图IA端),距离头部2cm处,锯一个1×4.5cm的长方形孔(插片
Ming room retinoscopy retinoscopy method is a more reliable method of various refraction, still widely used in clinical practice, but retinoscopy must be carried out in the darkroom. Currently in some primary hospitals, there is no darkroom equipment, thus carrying out retinoscopy has been limited. We use self-made Ming Shi check shadow detector, in the bright room retinoscopy, very convenient, after years of clinical practice has proved that good performance, introduced below, for reference to the grassroots hospitals. Production methods Take a hard plastic tube, length 50cm, diameter about 40cm. First end of the tube (Figure IA end), 2cm away from the head, saw a rectangular hole 1 × 4.5cm (insert