AIM: To observe the change of intraocular pressure(IOP), anterior chamber depth, causes, and clinical features and treatment of the secondary ciliary body detachment after remission of the acute attack of primary acute angle-closure glaucoma(PACG).

METHODS: Clinical data of 84 patients 84 eyes with PACG from August 1, 2011 to November 30, 2011 were retrospectively analyzed. Nineteen PACG patients 19 eyes were determined with choroidal or ciliary detachment by ultrasound biomicroscope(UBM)and B ultrasound examination. The anterior anatomical features, UBM and B ultrasound imaging, as well as the treatment outcome of those patients were analyzed.

RESULTS: The IOP was(50.4±6.5)mmHg and the central anterior chamber depth was(1.65±0.12)mm in eyes without choroidal or ciliary detachment; and the IOP was(7.93±4.3)mmHg and the central anterior chamber depth was(1.29±0.1)mm in eyes with choroidal or ciliary detachment. UBM and B-ultrasound: secondary choroidal detachment in 10 cases, ciliary body detachment in 4 cases, choroidal and ciliary detachment in 5 cases, all cases received the conventional glaucoma surgery combined with appropriate amount of glucocorticoid treatment, and all of the detachment was reset.

CONCLUSION: Acute attack of PACG can often cause ciliary body and choroidal detachment, and pre-treatment IOP is higher. The duration of remission is shorter. The choroid and ciliary are in the higher risk of detachment. The direct sign of choroidal or ciliary detachment is low IOP, shallower anterior chamber, and it's most reliable way to check is UBM. The conventional anti-glaucoma surgery combined with the amount of glucocorticoid is effective treatment for these patients.