J Korean Ophthalmol Soc > Volume 57(2); 2016 > Article
Journal of the Korean Ophthalmological Society 2016;57(2):236-242.
DOI: https://doi.org/10.3341/jkos.2016.57.2.236    Published online February 1, 2016.
Comparison of Effective Phacoemulsification Time between Femtosecond Laser-Assisted Cataract Surgery and Conventional Cataract Surgery.
Dong Seob Ahn, Sang Youp Han, Kyung Heon Lee
Sungmo Eye Hospital, Busan, Korea. medicalhan@hanmail.net
펨토초레이저를 이용한 백내장 수술과 고식적 백내장 수술에서 유효초음파시간의 비교
To compare the effect of femtosecond laser-assisted cataract surgery with conventional cataract surgery on effective phacoemulsification time (EPT). METHODS: This study included 66 patients 100 eyes who underwent femtosecond laser-assisted cataract surgery and 68 patients 100 eyes who underwent conventional cataract surgery. Both groups underwent phacoemulsification using pulsed ultrasound energy and EPT was evaluated. The groups were further analyzed according to preoperative Lens opacities classification system (LOCS) III grading. Patients who had femtosecond laser-assisted cataract surgery underwent lens fragmentation with quadrant, hybrid, or grid pattern and the EPT was respectively evaluated. RESULTS: The mean EPT was 5.85 +/- 4.31 seconds in the femtosecond laser-assisted cataract surgery group and 10.34 +/- 6.61 seconds in the conventional group. Overall, EPT was statistically significantly lower in the femtosecond laser-assisted cataract surgery group compared to the conventional group. When the groups were analyzed according to LOCS III grading, this result was consistent for all cataract grades and the reduction in EPT was increased with the higher LOCS III grade. When the groups were analyzed according to lens fragmentation patterns, the mean EPT was lower with 350 microm grid pattern than the quadrant or hybrid pattern. CONCLUSIONS: The femtosecond laser-assisted system in cataract surgery can be an efficient cataract surgery using lower EPT compared to the conventional procedure. Additionally, significant differences were observed in the mean EPT of cataract surgery using the femtosecond laser-assisted system among the 3 lens fragmentation pattern groups.
Key Words: Effective phacoemulsification time;Femtosecond cataract surgery;Fragmentation

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