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.a. 双侧TT患者随机选取单眼作为试验眼。 b. 无法配合视力测量。 c. 1名受试者无法完成睑结膜检查。 CF（count fingers，数指视力）；BMI（body mass index，体质量指数）；HM（hand movements，手动视力）；PL（perception of light，光感）；NPL（no perception of light，无光感）；SD（standard deviation，标准差）；VA（visual acuity，视力）