Altay Y, Balta O, Burcu A, Ornek F
Department of Ophthalmology, Ankara Training and Research Hospital, Ankara, Turkey.
Niger J Clin Pract. 2018 Apr;21(4):451-455. doi: 10.4103/njcp.njcp_103_17.
This study aims to report the outcomes of new-generation hybrid contact lenses for visual rehabilitation of postkeratoplasty patients.
Twenty eyes of twenty postkeratoplasty patients were fitted with hybrid lenses. Each patient's keratometric values, ocular surface irregularity indices, central corneal thickness (CCT), uncorrected visual acuity (UCVA), spectacle-corrected visual acuity, contact lens-corrected visual acuity, contact lens fitting data, and contact lens daily wearing time were recorded. Follow-up examinations were performed at 1 week, 1 month, and 3 month visit after successful fitting of the lenses.
The mean age of the patients was 38.42 ± 4.89 years. The mean spherical component of refractive error was -4.46 ± 2.1 D, and the mean astigmatism was -5.31 ± 1.55 D. The median UCVA was 1.00 logarithm of the minimum angle of resolution (logMAR) which improved to 0.40 logMAR after spectacle correction. The median visual acuity with hybrid contact lenses was 0.05 logMAR. The median CCT was 544.4 μm and increased to 549.2 μm at 3 months after contact lens wear. The difference was not statistically significant (P = 0.38). The mean follow-up of patients was 4.32 ± 0.45 months. Eighteen of twenty patients reported a mean of 8.37 ± 1.95 h comfortable wearing time per day during this period. Two patients discontinued contact lens wearing due to conjunctival hyperemia. No graft-related complications such as decompensation, rejection, and infection were documented during the follow-up period.
The new-generation hybrid contact lenses can be considered helpful in the visual management of postcorneal graft patients, particularly who are unable to achieve an adequate visual outcome with spectacles.
本研究旨在报告新一代混合式隐形眼镜用于角膜移植术后患者视力康复的效果。
为20例角膜移植术后患者的20只眼睛佩戴混合式隐形眼镜。记录每位患者的角膜曲率值、眼表不规则指数、中央角膜厚度(CCT)、未矫正视力(UCVA)、框架眼镜矫正视力、隐形眼镜矫正视力、隐形眼镜验配数据以及隐形眼镜每日佩戴时间。在成功佩戴隐形眼镜后的1周、1个月和3个月进行随访检查。
患者的平均年龄为38.42±4.89岁。屈光不正的平均球镜度数为-4.46±2.1D,平均散光度数为-5.31±1.55D。UCVA的中位数为1.00最小分辨角对数(logMAR),框架眼镜矫正后提高至0.40 logMAR。混合式隐形眼镜矫正后的视力中位数为0.05 logMAR。CCT的中位数为544.4μm,佩戴隐形眼镜3个月后增加至549.2μm。差异无统计学意义(P = 0.38)。患者的平均随访时间为4.32±0.45个月。20例患者中有18例报告在此期间平均每天舒适佩戴时间为8.37±1.95小时。2例患者因结膜充血停止佩戴隐形眼镜。随访期间未记录到与移植相关的并发症,如失代偿、排斥反应和感染。
新一代混合式隐形眼镜可被认为有助于角膜移植术后患者的视力管理,特别是那些无法通过框架眼镜获得足够视力结果的患者。