Study Design and Participants
Parkinson disease, ptosis, mental disease, eyelid disorders
DISEASE, EYELID DISORDER
This prospective, nonblinded, randomized crossover study was conducted at the Department of Ophthalmology at Juntendo University Hospital, Tokyo, Japan. Patients aged ≥20 years were recruited between April 20, 2022, and June 8, 2022. Patients with a history of eyelid disorders, ptosis, mental disease, Parkinson disease, or any other disease affecting blinking were excluded. Furthermore, we excluded patients with missing data from the analysis.