Abstract
Soft-lens cataract surgeries are becoming increasingly common for cataract surgeons and chopping the soft nucleus using conventional techniques is problematic. We introduced a femtosecond laser combined with a non-chopping rotation phacoemulsification technique for soft-nucleus cataract surgery and evaluated the safety and efficacy of using this technique. Sixty-six patients with soft-nucleus cataracts ranging from grade 1~3 were divided into 3 groups based on nuclear staging. Those groups were further divided into three subgroups: femtosecond laser pretreatment combined with a non-chopping rotation phacoemulsification technique (subgroup 1), conventional manual cataract surgery with a non-chopping rotation technique (subgroup 2) and conventional manual cataract surgery with a quick-chop technique (subgroup 3).Patients were followed up at 1, 7, and 30 days after surgery. There was an 84.6% and a 63.34% reduction in ultrasound time and cumulative dissipated energy, respectively, between the subgroup 1 and the subgroup 3; and this was associated with a 36.1% and 29.7% reduction in endothelial cell loss and aqueous flare. There were no adverse events at the follow-up times. With its reduced ultrasound energy, endothelial cell loss and aqueous flare, the femtosecond laser pretreatment combined with a non-chopping rotation technique was more efficient than conventional manual cataract surgery for soft-nucleus cataracts.
Highlights
Cylindrical pattern to develop our own technique for removal of soft nuclei, to minimize the necessary phacoemulsification energy and time
22 patients had femtosecond laser pretreatment with the non-chopping rotation technique, whereas standard cataract surgery followed by phacoemulsification with or without non-chopping rotation techniques was performed on the other patients
The results showed that phacoemulsification time and energy can be significantly reduced by using the femtosecond laser-assisted technique described here
Summary
Cylindrical pattern to develop our own technique for removal of soft nuclei, to minimize the necessary phacoemulsification energy and time. Previous studies have shown that the level of ultrasound use influences anterior chamber flare values, which is a sign of an increased permeability of the blood–aqueous barrier[12]. With the introduction of femtosecond laser pretreatment, there is the need to evaluate the safety profile of this new technology with respect to its potential to alter postoperative inflammation. The aim of this paper is to evaluate the safety and efficacy of femtosecond pre-treatment with a non-chopping rotation technique in soft nuclei
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