Study population
uveitis, retinitis, visual field damage, optic nerve injury
HYPERTROPHIC, SYSTEMIC DISEASE, UVEITIS, ADHESION, SECONDARY, NEOVASCULARIZATION, RETINITIS, DISEASES
We enrolled patients with PACS and PAC who visited the Ophthalmology Department of Peking University International Hospital from December 2019 to December 2021. In order to avoid the bias of lost visits, we included patients who had lived locally for a long time, and reminded them to come for further consultation by telephone. To avoid information deviation, each examination is completed by the same examiner, and all laser operations are completed by the same doctor (Dr Qin).The inclusion criteria of patients were as follows: (1) Newly diagnosed patients with PACS or PAC, (2) an IOP of less than 30 mmHg, and (3) UBM showed a plateaued or hypertrophic peripheral iris. PACS was defined as a narrow chamber angle (posterior pigmented trabecular meshwork not visible in at least three quadrants during static gonioscopy), an IOP of less than 21 mmHg, no glaucoma-induced optic nerve injury, and no peripheral anterior adhesion. PAC was defined as the presence of a closed angle (peripheral iris and posterior trabecular meshwork not visualized in more than 180 degrees), elevated IOP, and PAS without glaucoma-induced optic disc or visual field damage [The exclusion criteria were as follows: (1) a baseline IOP without treatment above 30 mmHg, (2) systemic diseases or poor fixation, making cooperation of the patient with the examination and laser treatment impossible, (3) other diseases in the anterior or posterior segment of the eye or prior eye surgery, (4) systemic or local use of drugs that affect pupil diameter or the physiological IOP rhythm, and (5) secondary angle closure (e.g., neovascularization, uveitis, retinitis pigmentosa).Potential patients were included based on the results of the BCVA, IOP, anterior chamber gonioscopy (OSMG, ocular), UBM (Aviso, Quantel Medical), and visual field (OCTOPUS900, Clinico) examinations.