Effect of diode laser contact transscleral pars plana photocoagulation on intraocular pressure in glaucoma

Purpose: To evaluate the efficacy of diode laser contact transscleral pars plana photocoagulation (CTPPP) for intraocular pressure (IOP) control in glaucoma and its clinical application. Method: A prospective, non‐randomized hospital‐based pilot study was conducted. Fourteen patients with poor visua...

Full description

Saved in:
Bibliographic Details
Published in:Clinical & experimental ophthalmology 2002-10, Vol.30 (5), p.343-347
Main Authors: Ho, Ching Lin, Wong, Edmund YM, Chew, Paul TK
Format: Article
Language:English
Subjects:
Adult
Aged
Aged, 80 and over
Ciliary Body - surgery
diode laser
Female
Glaucoma - physiopathology
Glaucoma - surgery
Humans
Intraocular Pressure
Laser Coagulation
Male
Middle Aged
Pilot Projects
Prospective Studies
Sclera - surgery
transscleral cyclophotocoagulation
Treatment Outcome
uveoscleral outflow
Visual Acuity
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Purpose: To evaluate the efficacy of diode laser contact transscleral pars plana photocoagulation (CTPPP) for intraocular pressure (IOP) control in glaucoma and its clinical application. Method: A prospective, non‐randomized hospital‐based pilot study was conducted. Fourteen patients with poor visual acuity (VA worse than 6/60) and medically uncontrolled, refractory glaucoma were recruited, and CTPPP was performed after informed consent. Results: Mean preoperative IOP was 41.0 mmHg (SD 12.6, range 27−70, n = 14). At 1 week postoperatively, IOP was reduced in 12 of 14 (86%) patients to a mean of 28.6 mmHg (SD 15.8, range 3−55, n = 14). This represented a mean decrease of 12.4 mmHg. Mean IOP was 34.0 mmHg (SD 17.4, range 5−71, n = 14) and 31.6 mmHg (SD 13.4, range 5−22, n = 12) at 4 and 12 weeks, respectively. The IOP reduction was significant at 1 week (P = 0.001, paired t‐test) and at 12 weeks (P = 0.04, paired t‐test). The two patients with preoperative pain reported abolition of pain after the procedure. Seven of 13 patients on preoperative antiglaucoma eye drops did not require eye drops postoperatively. Conclusions: Diode laser CTPPP was found to significantly reduce IOP in the majority of patients at 1 week postoperatively, with less but still significant effect at 12 weeks. Its potential application as a procedure for short‐term IOP reduction in medically uncontrolled glaucoma requiring filtering surgery needs to be further investigated.
ISSN:1442-6404
1442-9071
DOI:10.1046/j.1442-9071.2002.00553.x