AIM:To analyse the damage of visual field with Posner Schlossman’s syndrome (PSS).METHODS:Clinical observation of visual field and intraocular pressure(IOP) of 42 patients with PSS was performed.RESULTS: The incidence of visual field damage was 35%.Patients with double-eyes involved,older age,longer course and narrower angle contributed to high incidence of visual field damage.CONCLUSION:The high incidence of visual field damage is likely to occur in patients with double-eyes involved, older age,longer course and narrower angle.