The Effect Of Selective Laser Trabeculoplasty On Primary Open Angle Glaucoma

Objective To evaluate the long-term effect of selective laser trabeculoplasty (SLT) on primary open angle glaucoma (POAG) in a clinical study. SLT is a new kind of laser trabeculoplasty that selectively targets the trabecular meshwork (TM) cells without coagulative damage to the TM.Methods 48 eyes diagnosed as POAG were treated with a frequency-doubled, Q-switched Nd: YAG laser (532nm). A total of approximately 50-80 nonoverlaping spots were placed over 180 of the TM at the energy levels range from 0.68-1.70mJ/ pulses. Every patient was asked for follow-up at 1h, 2h, 3h, 4h, 1d, 1w, 1m, 3m, 6m, ly, 2y after treatment. Intraocular pressure (IOP), visual acuity, C/D and visual field were examined every time.Results The pretreatment IOP was 23.15 7.71mmHg. After the end of 1m of follow-up the IOP was 17.92 3.35mmHg, after the end of 3m of follow-up the IOP was 18.05 2.58mmHg, after the end of 6m of follow-up the IOP was 17.54 2.31mmHg, after the end of ly of follow-up the IOP was 17.94 2.81mmHg, after the end of 2y of follow-up the IOP was 18.35 3.07mmHg, without significant differences in visual acuity, visual field, and C/D.Conclusions SLT is a kind of effective treatment method of POAG.