Laser trabeculostimulation in open-angle glaucoma: a new trial. Part I.
We describe herein a new trial to stimulate trabecular meshwork tissue and thereby increase outflow facility. The efficacy of our laser trabeculostimulation (LTS) was compared with that of conventional laser trabeculoplasty (LTP), since LTP causes shrinkage and cicatrization of the meshwork tissue, thus limiting the reduction of postoperative intraocular pressure (IOP). The mean preoperative IOP of 40 eyes was 24.9 +/- 6.8 mm Hg (mean +/- SD). LTS was applied with a 50-microns spot, a power setting of 50 mW and an exposure time of 1 s. With LTS, the IOP decreased but then increased afterward. Results indicate that low power (50 mW) is effective if used for a longer duration. Our LTS can be applied repeatedly and used in addition to conventional LTP. Although our LTS was less effective than LTP, the trial may lead to the development of another useful treatment modality.
Suzuki
R
R
Department of Ophthalmology, Yamaguchi University School of Medicine, Ube City, Japan.
Nakayama
M
M
Yoshino
H
H
Kurimoto
S
S
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001082:Aqueous Humor / Q000502:physiology; D005902:Glaucoma, Open-Angle / Q000503:physiopathology / Q000601:surgery*; D006801:Humans; D007429:Intraocular Pressure; D053685:Laser Therapy; D008875:Middle Aged; D014129:Trabecular Meshwork / Q000503:physiopathology*; D014130:Trabeculectomy; D016896:Treatment Outcome