Verion system

All patients underwent scheduled cataract surgery, which was performed by a single, experienced surgeon (I.J.). Femtosecond laser-assisted cataract surgery was performed using the LenSx platform (Alcon Laboratories, Inc., Fort Worth, TX, USA) for capsulorhexis, nucleus fragmentation, and penetrating arcuate keratotomy. The keratotomies were centered on the steep corneal axis, and the length of the arcuate keratotomy was determined using a Verion system (Alcon Laboratories, Inc.). After all pattern selections and parameter choices were made, patients were instructed to lie on a built-in bed beneath the laser device. The disposable vacuum interface was positioned to the operation eye with a suction ring, and laser emission was initiated, following which the patient was transported to the operation room. At the start of cataract surgery, laser corneal incision sites were carefully dissected using a Sinskey hook. The incised anterior capsule button was removed using forceps. Patients underwent conventional phacoemulsification using a Centurion Vision System (Alcon Laboratories, Inc.). Following phacoemulsification, a single type of IOL, Artis PL E, was implanted in the capsular bag using an injector, and the remaining ophthalmic visco-surgical device was removed. All incision sites were hydrated to prevent leakage.

All cataract surgeries were carried out by one experienced surgeon (L.A.R) under topical and intracameral anesthesia, through a 2.2 mm clear-cornea incision at 135 degrees and “stop and chop” phacoemulsification [6 (link), 7 (link)]. Moreover, IOL implantation was guided by the VERION® System (Alcon Laboratories, Inc, Fort Worth, USA).