Inclusion Criteria:  Visually significant cataract patients aged >18 years with PAC or PACG who underwent prophylaxis peripheral iridotomy at least 2 months prior to participation.  Exclusion Criteria:  Patients with preexisting glaucomatous visual field defect, except generalized depression Any other concurrent ocular diseases that could affect visual acuity, except cataract History of ocular inflammation or ocular surgery, except laser peripheral iridotomy, which is a routine procedure for treating PAC/PACG