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患者男,40岁。左眼被铁屑击伤8年,当时视力下降,治疗1月后恢复正常。半年前始左眼视力下降,所见范围缩小,并逐渐加重,至遮盖健眼后感行走困难。平素双眼视力正常,家族中无遗传性眼病史。检查:视力右1.5,左0.8;近视力右1.5/30cm,左0.3/30cm。左眼角膜清亮,房水不混,虹膜纹理、色泽正常;前房角镜检查见九点钟处有一异物,约芝麻大小;扩瞳后检查,晶体及玻璃体无混浊,视乳头及视网膜色泽正常,未见色素游离,视网膜血管无异常,黄斑中心正反光锐利。左眼压2.00kPa,右眼压2.27kPa,左鼻侧视野完全消失,颞侧及上下方呈向心性缩小,右眼正常。X线检查证实左眼内金属异物。视诱发电位检查提示左视路传导功能障碍。右眼正常。入院后在局麻下于九点钟房角处取山1mm×2mm铁屑1粒。
Male patient, 40 years old. Left eye was hit by iron filings for 8 years, then decreased visual acuity, treatment returned to normal after January. Six months ago left eyesight decreased, the scope of the narrowing, and gradually increased to cover the eye health problems after walking. Normal binocular vision is normal, no history of hereditary ocular disease in the family. Check: visual acuity 1.5, left 0.8; near visual acuity 1.5 / 30cm, left 0.3 / 30cm. Left cornea clear, aqueous humor, iris texture, normal color; gonioscopy at nine o’clock there is a foreign body at about nine o’clock, about the size of sesame seeds; dilation after examination, no opacity of the lens and vitreous, normal papilla and retinal color , No pigment free, no abnormal retinal blood vessels, macular center sharp and sharp. Left eye pressure 2.00kPa, right eye pressure 2.27kPa, the left nasal vision completely disappeared, the temporal side and the upper and lower side was reduced to the heart, the right eye is normal. X-ray examination confirmed the left eye metal foreign body. Visual evoked potentials prompted left visual pathway conduction dysfunction. Right eye is normal. After admission, under local anesthesia at nine o’clock in the corner of the mountain to take a mountain 1mm × 2mm 1 iron scrap.