近年来干眼患者的角膜神经痛受到了临床越来越多的关注,角膜神经痛指角膜对正常无痛刺激作出反应并疼痛感增强,对患者日常生活和工作产生严重的负面影响。角膜神经痛往往是干眼的常见症状之一,同时干眼也会引起角膜知觉的下降,其具体的机制尚不明了。干眼患者眼表感觉神经往往表现出结构和功能的变化,对干眼相关神经异常机制的了解将有助于干眼及相关角膜神经异常的防治。泪膜的不稳定、泪液分泌异常、眼表炎症和泪膜渗透压增加等多种因素可能参与干眼相关角膜神经痛。临床多依据干眼相关角膜神经痛的发病机制进行抗炎治疗、润滑眼表、促进角膜神经纤维再生治疗、针对感受器的镇痛治疗、睑缘治疗,如有必要需进行全身干预治疗。本文总结了角膜神经痛的病理和影响因素,探讨干眼相关角膜神经痛的发病机制和诊疗要点,以期提高对干眼相关角膜神经痛的临床诊疗。
In recent years, corneal neuralgia in dry eye patients has received more and more clinical attention.Corneal neuralgia refers to the increasing pain of cornea in response to normal painless stimuli, which has a serious negative effect on patients' work and daily life.Corneal neuralgia is often one of the common symptoms of dry eye.Dry eye can also cause corneal sensation decline and the mechanism is still unclear.Patients with dry eye often exhibit structural and functional changes in ocular surface nerve, so understanding the mechanism of dry eye-related neurological abnormalities will help to treat and prevent dry eye-related neurological abnormalities.Various factors such as instability of tear film, abnormal tear secretion, ocular surface inflammation, and increased osmotic pressure of tear film may be involved in dry eye-associated corneal neuralgia.Clinically, anti-inflammatory therapy, lubricating ocular surface, promoting regeneration of corneal nerve fibers, analgesic therapy targeting receptors, palpebral edge treatment, and systemic intervention if necessary are mainly performed based on the pathogenesis of dry eye related corneal neuralgia.In this article, the pathologic and influencing factors of corneal neuralgia were summarized, and the pathogenesis of dry eye-related corneal neuralgia were investigated to help the clinical diagnosis and treatment of dry eye-related corneal neuralgia.
晋凯风,晋秀明. 干眼相关角膜神经痛[J]. 中华实验眼科杂志,2023,41(03):292-296.
DOI:10.3760/cma.j.cn115989-20200131-00043版权归中华医学会所有。
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