This is a 10-centre randomized controlled clinical trial to explore whether laser peripheral
iridoplasty (LPIP) plus laser peripheral iridotomy (LPI) is more effective than single LPI to
control the progression of primary angle closure with multi-mechanism based on the UBM
If you are confirmed eligible after full screening, you will be required to understand and sign the informed consent if you decide to enroll in the study. Once enrolled you may be asked to make scheduled visits over a period of time.
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