2.1. Study Characteristics
drusen, ARDS
DRUSEN, ARDS
This is a double-blind, randomized controlled trial of parallel design, with 1:1 allocation. Inclusion criteria were AMD with persistent drusen, categorized according to ARDS categories 2 and 3, without GA or prior ocular surgery, and consent to participate. ARDS category 2 was defined as <63 µmin diameter or non-extensive intermediate drusen of 63–125 µm diameter, and ARDS category 3 as extensive intermediate large drusen ≥125 µm diameter [Patients who met the initial inclusion criteria were enrolled in the study. The participants were randomly assigned to the study or control group by computer randomization. The physician who registered the participants to the groups using serial numbers did not take further part in the study.