Posters

Therapeutic effect of patterned laser trabeculoplasty (PLT) in glaucoma patients who have severe intraocular pressure (IOP) fluctuation

Poster Details

First Author: K.Park SOUTH KOREA

Co Author(s):                        

Abstract Details

Purpose:

We evaluated fluctuations of IOP before and after PLT in glaucoma patients

Setting:

Seven eyes of six patients, who were treated with antiglaucoma medication from July 2018 to April 2019 in Hanbit eye clinic, were enrolled. Diurnal fluctuation of IOP were above 7 mmHg.

Methods:

PLT was performed by one surgeon (KS Park). The laser patterns were 3 rows of 13 spots each with a spot size of 100 μm at 5 ms exposure intervals. Power was titrated for trabecular meshwork blanching. Using a Goldman tonometer, IOP and blood pressure were measured by one surgeon (KS Park) at day time (AM 7:00 ~ midnight : every hour) and night time (midnight ~ AM 6:00 : every 2 hours). P value 0.05 or less is considered statistically significant.

Results:

The mean IOP was 14.12±14.85 mmHg before PLT and decreased to 12.18±3.76 mmHg after 3 months (p=0.063), 11.77±4.53 mmHg after 6 months of PLT (p=0.028). The range of fluctuation of IOP was 9.57±2.45 mmHg before PLT and decreased to 6.00±1.73 mmHg after 3 months (p=0.027), 4.93±0.73 mmHg after 6 months of PLT (p=0.018).

Conclusions:

PLT decreased mean and fluctuation of IOP. PLT is faster and more accurate than before, reducing the IOP fluctuation. Additional effects can be expected, especially in patients with antiglaucoma medication. This is the first study to show changes in fluctuations of IOP for 24hours before and after PLT in glaucoma patients with severe IOP fluctuation.

Financial Disclosure:

None