• This prospective study found that the effects of laser peripheral iridotomy were similar between Caucasian and Chinese primary angle-closure patients.

    This is the first study to compare preoperative and laser peripheral iridotomy-induced changes in anterior segment biometric parameters between Caucasian and Chinese primary angle-closure patients.

    The study included 28 Caucasian patients (48 eyes) and 24 Chinese patients (36 eyes). The authors analyzed anterior segment OCT images captured before and after laser peripheral iridotomy.

    They found that regardless of ethnic classification, laser peripheral iridotomy leads to opening of the anterior chamber angle width, expansion of anterior chamber dimensions and flattening of iris convexity.

    However, while certain aspects of anterior segment anatomy differed between Caucasians and Chinese preoperatively, they did not translate into significant differences in the amount of laser peripheral iridotomy-induced changes in the anterior segment biometric parameters.