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Conventional laser peripheral iridotomy (LPI) and the LPI combined with iridoplasty technique. (A) Conventional LPI refers to LPI alone. (B) The LPI combined with iridoplasty approach consists of LPI followed by laser peripheral iridoplasty administered in the same session. Yellow circle: LPI site, cyanine-blue circle: laser peripheral iridoplasty site; about 20 burn spots are placed alongside the limbus.
