Statistical analysis
Data were summarised using the mean, standard deviation (SD), median, first and third quartiles (Q1, Q3) and percentages. Baseline characteristics and 24-month outcomes were compared between the two groups using two sample t-tests, Wilcoxon rank sum tests and Chi-square tests for analysis of means, medians and categorical data, respectively. The time until achieving VA ≥ 85 letters was analysed using Kaplan-Meier survival curves. A 