Intraocular Pressure Changes Before And After A Femtosecond Laser Procedure For Cataract Surgery
Published 2024 - 42nd Congress of the ESCRS
Reference: PO377 | Type: Free paper | DOI: 10.82333/jvs3-9s33
Authors: Ho Seok Chung* 1 , Yoo Young Jeon 1 , Hayoung Lee 1 , Taehun Kim 1 , Kyu Sang Eah 1 , Yong-Ha Jo 1 , Soo Young Lee 1 , Nawoo Kim 1 , Hun Lee 1 , Jae Yong Kim 1 , Hungwon Tchah 2
1Asan Medical Center,Seoul,Korea, Republic Of, 2Kim's Eye Hospital,Seoul,Korea, Republic Of
Purpose
We aimed to evaluate the changes in intraocular pressure (IOP) before and after femtosecond laser capsulorhexis and lens fragmentation for cataract surgery.
Setting
Asan Medical Center, Seoul, South Korea
Methods
This study included patients who underwent femtosecond laser-assisted cataract surgery (FLACS). We measured the IOP before, immediately, 30 minutes, and 1 hour after the laser procedure in 47 eyes of 47 patients who underwent the femtosecond laser procedure. For 16 eyes, we measured the IOP every 10 minutes until 1 hour after the laser procedure. Additionally, we evaluated the correlation of age, nuclear sclerosis grade, sex, anterior chamber depth, laser energy, axial length, baseline IOP with IOP at 1 hour after the femtosecond laser procedure.
Results
The mean IOP was 17.51±3.28 mmHg, 30.23±6.70 mmHg, 17.96±3.75 mmHg, and 21.77±5.88 mmHg before, immediately after, 30 minutes after, and 1 hour after the laser procedure, respectively. The mean IOP significantly increased immediately (adjusted P<0.001) and 1 hour (adjusted P=0.001) after the laser procedure compared with the pre-laser IOP. The mean IOP at 30 minutes after the laser procedure was significantly lower than that immediately after the procedure (adjusted P<0.001). However, the IOP 1 hour after the laser procedure became higher than that 30 minutes after the laser procedure. Additionally, the IOP 1 hour after the laser procedure was positively correlated with the baseline IOP and negatively correlated with the axial length.
Conclusions
In conclusion, this study demonstrated that cataract surgery should be commenced within 30 minutes after the femtosecond laser procedure to ensure a safe cataract surgery that reduces the risk of increased intraocular pressure.