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J Haritz Urcola, II, Jaime Aramberri, Angela Gómez, Erika Miranda; Qualitative And Quantitative Angle Changes By Anterior Segment Optical Coherence Tomography After Laser Iridoplasty In Iris- Plateu. Invest. Ophthalmol. Vis. Sci. 2011;52(14):2617.
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© ARVO (1962-2015); The Authors (2016-present)
To investigate the inmediate effect of argon laser peripheral iridoplasty (ALPI) and determine quantitative trabecular -iris angle change in iris plateu syndrome patients measured by anterior segment optical coherence tomography (AS-OCT).
Observational noncomparative case series of 12 patients previously diagnosed of iris plateu syndrome. Following parameters were measured at initial consultation: age, gender, anterior chamber depth (ACD), IOP, refraction, axial length (AL) and two ultrasound biomicroscopy (UBM) parameters iris-ciliary process distance (ICPD) and scleral-ciliary process angle (SCPA). IOP and anterior chamber angle was measured by AS-OCT (Topcon,3D) at initial study, 1 week, 1 month and 6 months after ALPI.
A total of 14 procedures were included in 12 patients (6 men, 6 women). The mean age was 59±9.8 years. The mean SCPA measured by BMU parameters were 27,06±3,2 and 0.17±0.07 for ICPD. We did not observe statistical significant relationship between change in trabecular-iris angle and decrease in IOP after ALPI (R2 0.509, p 0.43) although significant decrease in IOP and number of glaucoma medications were observed.
AS-OCT permits qualitative, non-invasive control of the trabecular-iris angle change achieved by ALPI for monitoring the peripheral iris insertion. No association between IOP decrease and quantitative angle change has been detected.
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