Bradbury J A, Rennie I G, Parsons M A
Department of Ophthalmology, University of Sheffield.
Br J Ophthalmol. 1988 Dec;72(12):935-7. doi: 10.1136/bjo.72.12.935.
A 73-year-old woman on topical pilocarpine and adrenaline for chronic simple glaucoma for three years presented with a mass in the medial canthus of the right eye. Although dacryocystography showed a dilated and partially obstructed nasolacrimal system, ultrasound examination was able to demonstrate a mass in the nasolacrimal duct. At operation a black dacryolith was found, of the diameter predicted by ultrasound. Histological examination of the dacryolith suggested its derivation from breakdown products of adrenaline.
一名73岁女性，因慢性单纯性青光眼使用毛果芸香碱和肾上腺素滴眼液治疗三年，现右眼内眦部出现肿物。尽管泪囊造影显示鼻泪系统扩张且部分阻塞，但超声检查发现鼻泪管内有肿物。手术中发现一块黑色泪石，大小与超声预测相符。泪石的组织学检查提示其来源于肾上腺素的分解产物。
