Cornea and Anterior Segment Service, L V Prasad Eye Institute, Visakhapatnam, Andhra Pradesh, India.
Cornea. 2011 Jun;30(6):660-3. doi: 10.1097/ICO.0b013e3182012703.
The aim of the study was to describe the clinical features, histopathological findings, and management of eyes presenting with a thick membrane after anterior stromal puncture (ASP) for bullous keratopathy.
Retrospective interventional case series.
Retrospective chart analysis of 3 eyes presenting with a thick membrane between 12-30 months after ASP was done. Patients presented with complaints of recurrent symptoms of pain, watering, and irritation. The membrane was peeled off from the corneal surface in the operation room and sent for histopathological evaluation. A cryopreserved amniotic membrane was secured on the corneal surface using 10-0 nylon interrupted sutures.
Patients reported alleviation of symptoms after the procedure and remained asymptomatic at the final follow-up (range 6-12 months). Histopathological evaluation of the excised membrane revealed the presence of a hyperplastic epithelium with loose fibrocollagenous tissue suggestive of subepithelial fibrosis.
Subepithelial fibrosis after ASP, although a known entity, may rarely present as a thick membrane because of exaggerated response resulting in the recurrence of symptoms. This can be successfully managed by superficial keratectomy and amniotic membrane transplant.
本研究旨在描述因大疱性角膜病变行前弹力层基质穿刺(ASP)后出现厚膜的眼部的临床特征、组织病理学发现和处理方法。
回顾性介入病例系列研究。
对 ASP 后 12-30 个月出现厚膜的 3 只眼进行回顾性图表分析。患者主诉疼痛、流泪和刺激反复发作。在手术室将厚膜从角膜表面剥离,并进行组织病理学评估。使用 10-0 尼龙间断缝线将冷冻保存的羊膜固定在角膜表面。
患者在手术后症状缓解,末次随访(6-12 个月)时无症状。切除的膜组织的组织病理学评估显示存在增生的上皮和疏松的纤维胶原组织,提示为上皮下纤维化。
ASP 后发生的上皮下纤维化虽然是一种已知的现象,但由于反应过度,可能很少表现为厚膜,导致症状复发。通过浅层角膜切除术和羊膜移植可以成功治疗。