The Associated Parameters Of The Effectiveness Of Femtosecond Laser-Assisted Capsulotomy In White Cataract Surgery

To explore the parameters of the effectiveness of femtosecond laser-assisted capsulotomy in white cataract surgery from the objective data, and to find the cutoff points of the parameters.

Changsha Aier eye hospital, Central South University, Changsha, China.

This study enrolled white cataract patients in Changsha Aier eye hospital from July 2018 to January 2020. All patients underwent femtosecond laser-assisted capsulotomy in a contact femtosecond laser device (LenSx, Alcon Laboratories, USA). The sex, age, visual acuity, intraocular pressure, axial length (AL), lens thickness (LT), anterior chamber depth (ACD) and mean keratometry (Km) were recorded. All eyes were divided into successful capsulotomy group and unsuccessful capsulotomy group according to the capsulotomy integrity. One-way analysis of variance was conducted between preoperative parameters and the effectiveness of femtosecond laser-assisted capsulotomy and to find the optimal cutoff points of the parameters.

60 eyes of 59 patients were enrolled. A successful capsulotomy achieved in 36 eyes (60%), and unsuccessful capsulotomy occurred in 24 eyes (40%). A statistically significant difference can be found in LT (P<0.01), ACD (P=0.014) and age (P<0.01) between the two groups and the LT of 5.21 mm is the optimal cutoff points. No significant differences were observed in sex (P=0.704), AL (P=0.598) and Km (P=0.873).

Femtosecond laser-assisted capsulotomy in white cataract is safe and effective. LT, ACD and age were the parameters of the effectiveness of femtosecond laser-assisted capsulotomy in patients with white cataract. LT is the main associated parameter. The thicker the LT, the lower effectiveness. And the LT of 5.21mm is the optimal cutoff point.