患儿男,5岁。发现左眼黄白色反光2个月,无任何不适。体检:左眼有白瞳症,眼球运动自如,眼压正常,裸眼近视力=0,矫正视力无助,眼眶无肿块、无压痛,眼睑无内外翻、无倒睫,泪器通畅,结膜无充血,巩膜、前房正常,虹膜纹理清晰,角膜、晶状体、玻璃体均透明,瞳孔对光反射正常,眼底镜检 Children male, 5 years old. Found that the left eye yellow and white reflective 2 months, without any discomfort. Physical examination: white pupil disease in the left eye, normal eye movement, normal intraocular pressure, naked eye near vision = 0, corrected visual acuity helpless, no orbital mass, no tenderness, eyelid without valgus, trichiasis, lacrimal patency, conjunctiva Congestive, sclera, anterior chamber normal, clear iris texture, cornea, lens, vitreous are transparent, normal pupil light reflex, fundus microscopy