[Is it useful to repeating trabeculoplasty?].
OBJECTIVE
To study the effect of a second trabeculoploplasty with argon laser (ALT) on the intraocular pressure.


METHODS
24 eyes of 18 patients with an average age of 64 are revised. These patients had had a previous ALT and after an average time interval of 26 months, a new ALT was performed on them. The previous IOP is compared with the one obtained 3 months after repeating the ALT. Analyzing only the cases on which both ALT have been carried out with the same parameters (impact of 50 micron, time 0.15 s., power 700 mw), we isolate a second group of 14 eyes of 14 patients, with 66 years of average age, on whom the ALT was repeated, after an average time interval of 18 months. The means and standard deviations are calculated, wearing out the contrast with the T-Student.


RESULTS
On the second ALT we obtain a decrease of the IOP of 26%. On the second group the IOP falls to an average of 16% after the first ALT and 28% after the second.


CONCLUSIONS
The ALT can be repeated with good results, obtaining even greater decreases of the lOP on the second ALT.
García Gómez S
Departamento de Cirugía, Oftalmología, Universidad de Valencia, Hospital Clínico, España. Salvador.Garcia@uv.es
García Delpech S
D000368:Aged; D005260:Female; D006801:Humans; D007429:Intraocular Pressure; D008297:Male; D008875:Middle Aged; D012086:Reoperation; D012189:Retrospective Studies; D014130:Trabeculectomy