Primary angle-closure glaucoma(PACG)is one of the most common types of sight-threatening glaucoma. Patients with PACG often have abnormal ocular anatomical variations when compared to normal subjects. With the development of ophthalmic imaging technology, the knowledge is accumulating on the correlation between ocular biometric parameters and PACG pathogenesis and development. It is now known that parameters such as the anterior chamber(AC)depth, AC area, AC volume, AC width, AC angle parameters, iris parameters, lens thickness and positioning, lens vault, ciliary body positioning and thickness, and choroid thickness are all correlated with the pathogenesis of PACG. The associations between PACG and corneal thickness, corneal curvature and corneal diameter need to be further confirmed. Research on the ocular biometry measurement plays important role in the prevention and treatment of PACG.