Zhang W, Hu H, Cheng H, et al. - Researchers conducted the study for assessing the changes in vessel density in patients with unilateral congenital cataract after cataract extraction. Participants in the study were children with unilateral congenital cataract. All patients were successfully subjected to congenital cataract extraction and implantation of an intraocular lens. Optical coherence tomography angiography was conducted to image the retinal vasculature in the macular and optic disc areas before and after surgery. The authors observed that one month after surgery, the best- corrected visual acuity was substantially enhanced relative to that before surgery. In addition, the axial length was changed one month after surgery. The reduction in vessel density can be a result of congenital cataracts in the macular and optic disc regions. Cataract extraction will alleviate the deprivation of the affected eye form and greatly increase the vessel density at the posterior pole of the affected eye.