Nd:YAG Laser Capsulotomy Rates in the Netherlands; Practice Variation and Association with Physician Practice Styles.

Abstract

To determine the practice variation in rate of Nd:YAG laser capsulotomy within one year after cataract surgery and to identify possible associations with physician practice styles. All hospitals and private clinics in The Netherlands. Retrospective observational study. In the national medical claims database, we identified all laser capsulotomies performed in the Netherlands within a year after cataract surgery in the years 2016 and 2017. Centres with the lowest and highest percentages of Nd:YAG laser capsulotomies were interviewed on their physician practice styles related to the development of posterior capsule opacification. The incidence of Nd:YAG laser capsulotomy varied between 1.2% and 26.0% in 2016 (median 5.0%) and between 0.9% and 22.7% in 2017 (median 5.0%). The rate of capsulotomy was highly consistent over time for each centre (Pearson correlation coefficient, 0.89, P < 0.001). In general, ophthalmology centres with a high rate of Nd:YAG laser capsulotomy more often did not (routinely) polish the posterior lens capsule, performed cortex removal with coaxial irrigation/aspiration (instead of bimanual), and more often used hydrophilic IOLs (compared to only using hydrophobic IOLs). We found a significant practice variation in performing Nd:YAG laser capsulotomy within one year after cataract surgery in the Netherlands. Routinely polishing the posterior capsule, using bimanual I/A, and the use of hydrophobic IOLs are associated with a lower incidence in Nd:YAG laser capsulotomy. Incorporating these practice styles may lower the practice variation and thus prevent added medical burden for the patient and decrease costs.