AIM:To investigate the safety and effect of femtosecond laser-assisted cataract surgery with Cionni modified capsular tension ring(MCTR)implantation in the management of traumatic lens subluxation.

METHODS: Totally 11 patients(11 eyes)with traumatic lens subluxation were divided into three groups according to the severity of lens dislocation, ranging from 90° to 120°(4 eyes), 120° to 180°(5 eyes)and 180° to 270°(2 eyes). The contact LenSx femtosecond laser cataract surgery platform was applied to create the capsulotomy, prepare nuclear fragmentation and make corneal wound creation. Anterior vitrectomy was performed in some patients during the surgery. After capsular retractors insertion and phacoemulsification, the MCTR was inserted to the capsular bag and fixed to the sclera. Finally, the IOL was implanted into the capsular bag. Postoperative visual acuity, intra- and post-operative complications, anterior capsular opening, IOL and MCTR position and intraocular pressure(IOP)were assessed.

RESULTS:The duration of follow-up was 2mo. All the operations were completed successfully. Five eyes underwent cataract surgery combined with anterior vitrectomy. Four eyes had been inserted with 2-eyelet MCTR and seven eyes with 1-eyelet MCTR. The best corrected visual acuity(BCVA)after operation was better than 0.5 in 4 eyes, between 0.3 and 0.5 in 3 eyes, between 0.1 and 0.3 in 3 eyes, and less than 0.1 in 1 eye. Compared with preoperative BCVA, the difference was statistically significant(P<0.05). All the IOLs were stably centered and the eyelet of MCTR was fixated steadily between the iris and the anterior capsule. The common intra- and post-operative complications were subconjunctival hemorrhage, incomplete capsulotomy, residual cortex, secondary glaucoma and posterior capsular opacification.

CONCLUSION:Femtosecond laser-assisted cataract surgery can improve the success rate of capsulorhexis, and reduce the difficulty of nuclear fragmentation. Femtosecond laser-assisted cataract surgery combined with MCTR implantation is an ideal surgical method for traumatic lens subluxation.