Department of Ophthalmology, University of Pavia, Pavia, Italy.
Ophthalmologica. 2010;224(4):247-50. doi: 10.1159/000277615. Epub 2010 Jan 23.
To evaluate recovery of corneal sensitivity in the graft following penetrating keratoplasty (PK) or deep anterior lamellar keratoplasty (DALK) in patients with keratoconus.
113 eyes of 113 patients (39 females, 74 males) were examined. All eyes had undergone corneal grafting: 39 PK, 74 DALK. Corneal sensitivity tested using the Cochet-Bonnet esthesiometer was evaluated the day before and 3 days, 3, 6, 12 and 24 months after surgery. The corneal sensitivity recovery was associated with surgical techniques (PK or DALK), age and sex of recipient and donor, cadaver time and type of preservation of the cornea.
The average percentage of recovery of corneal sensitivity was 91% at 2 years. Surgical techniques and other qualitative and quantitative variables did not affect the statistically significant recovery of corneal sensitivity.
In both surgical techniques, PK and DALK, we noticed a good recovery of corneal sensitivity in 2 years.
评估圆锥角膜患者行穿透性角膜移植术(PK)或深板层角膜移植术(DALK)后植片的角膜知觉恢复情况。
共 113 例(39 名女性,74 名男性)113 只眼接受了角膜移植术:39 只眼行 PK,74 只眼行 DALK。术前及术后 3 天、3、6、12 和 24 个月使用 Cochet-Bonnet 触觉计评估角膜知觉。角膜知觉恢复与手术技术(PK 或 DALK)、受者和供者的年龄和性别、尸体时间以及角膜保存方式相关。
术后 2 年,角膜知觉平均恢复率为 91%。手术技术和其他定性及定量变量对角膜知觉的显著恢复无影响。
在 PK 和 DALK 两种手术技术中,我们均发现术后 2 年角膜知觉恢复良好。