Baseline characteristics and number of follow-up assessments of participants, by study arm.

aParticipants with bilateral TT had one eye randomly selected as the trial eye.bUnable to cooperate with visual acuity measurement.cExamination of the tarsal conjunctiva was not possible in one individual.CF, count fingers; BMI, body mass index; HM, hand movements; PL, perception of light; NPL, no perception of light; SD, standard deviation; VA, visual acuity.