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M. Shinzato, S. Hirosi, S. Sawaguchi, Y. Nakamura, S. Shinjyo; Ciliochoroidal Effusion Following Argon Laser Trabeculoplasty . Invest. Ophthalmol. Vis. Sci. 2003;44(13):3313.
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© ARVO (1962-2015); The Authors (2016-present)
Purpose: To report ciliochoroidal effusion (CE) after laser trabeculoplasty. Methods: Nine eyes of 9 glaucoma patients including 6 pseudophacic eyes (originally chronic angle closure glaucoma), 2 primary open angle glaucoma, , 1 capsular glaucoma were studied. average age 64 ± 14 years old and 4 male and 5 female, respectively. Prevalence of ciliochoroidal effusion following laser trabeculoplasty was prospectively studied by ultrasound biomicroscope (UBM, model UX-02, Rion Co, Tokyo). UBM examination was performed at just before, 2 hours, 24 hours and 7 days after laser Trabeculoplasty(LTP). Intraocular pressure was monitored by non contact tonometer (model CT-90, Topcon Co, Tokyo). Results: CE was observed in 4 eyes at 24 hours after LTP and all disappeared at 7days.CE was observed in 3 male and 1 female. Changes in IOP of CE positive eyes at 24 hours after LTP compared with just before (-12±7.2 mmHg) was significantly greater than that of CE negative eyes (-1.6±4.2 mmHg) (P=0.032) Conclusions: Uveoscleral route is one of the major aqueous outflow drainage systems. Widening of ciliochoroidal space demonstrated by UBM in this study may contribute to increase aqueous outflow and resulted in drop of IOPs shortry after LTP. The modes of action for lowering IOP by LTP was believed to be mechanical opening and/or degradation of extracellular matrices at the site of trabecular meshwork. CE associated with LTP may be another possible mechanism for lowering IOP in some glaucoma patients.
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