Cheng Anny M S, Yin Han Y, Chen Rendian, Tighe Sean, Sheha Hosam, Zhao Dandan, Casas Victoria, Tseng Scheffer C G
*Ocular Surface Center, Miami, FL; †Florida International University Herbert Wertheim College of Medicine, Miami, FL; ‡Department of Ophthalmology, Shenzhen Children's Hospital, Shenzhen, Guangzhou, China; and §Department of Ophthalmology, Yan'An Hospital of Kunming City, Kunming, Yunnan, China.
Cornea. 2016 Jun;35(6):736-40. doi: 10.1097/ICO.0000000000000784.
To determine whether conjunctivochalasis (CCh) obliterates the fornix tear reservoir and to discern whether there is concomitant aqueous tear deficiency (ATD) dry eye.
Retrospective review of 18 eyes of 12 patients with CCh and ATD (CCh + ATD) and 18 eyes of 13 patients with CCh without ATD (CCh - ATD). Changes were compared before and after fornix reconstruction regarding symptoms, basal tear volumes, use of medications, conjunctival inflammation, and corneal staining.
Fornix reconstruction with conjunctival recession and amniotic membrane transplantation effectively restored the fornix tear reservoir as evidenced by a significant increase of the basal tear volume in both CCh - ATD and CCh + ATD groups. Multivariate regression analysis confirmed that such improvement was significantly correlated with symptomatic resolution (r = 1, P < 0.001), which was also accompanied by significant resolution of corneal staining, conjunctival inflammation, and reduction of topical medications. Intriguingly, the prior diagnosis of ATD was no longer existent in 10 of the 18 eyes (56%) with CCh + ATD suggesting that ATD could be secondary to obliteration of the fornix tear reservoir by CCh.
Obliteration of the fornix tear reservoir is a common pathogenic process regardless of whether CCh is associated with ATD dry eye. Restoration of the tear reservoir by fornix reconstruction with conjunctival recession and amniotic membrane transplantation results in significant resolution of symptoms and signs associated with ATD that is secondary to CCh and helps identify genuine ATD dry eye that is independent of CCh.
确定结膜松弛症(CCh)是否会使穹窿部泪液储存区消失,并判断是否存在伴发的水性泪液缺乏(ATD)性干眼。
回顾性分析12例患有CCh和ATD(CCh + ATD)患者的18只眼,以及13例患有CCh但无ATD(CCh - ATD)患者的18只眼。比较穹窿部重建前后在症状、基础泪液量、药物使用、结膜炎症和角膜染色方面的变化。
通过结膜退缩和羊膜移植进行的穹窿部重建有效地恢复了穹窿部泪液储存区,CCh - ATD组和CCh + ATD组的基础泪液量均显著增加。多因素回归分析证实,这种改善与症状缓解显著相关(r = 1,P < 0.001),同时角膜染色、结膜炎症也显著缓解,局部用药减少。有趣的是,18只患有CCh + ATD的眼中有10只(56%)不再有ATD的先前诊断,这表明ATD可能继发于CCh导致的穹窿部泪液储存区消失。
无论CCh是否与ATD性干眼相关,穹窿部泪液储存区消失都是一个常见的致病过程。通过结膜退缩和羊膜移植进行穹窿部重建来恢复泪液储存区,可显著缓解继发于CCh的与ATD相关的症状和体征,并有助于识别独立于CCh的真正ATD性干眼。