https://www.selleckchem.com/products/cytosporone-b.html However, it could result in relatively low CS for super high myopia patients, so rigorous preoperative examination must be done. (Chin J Ophthalmol, 2021, 57 358-365).Objective To investigate the characteristics and associated factors of early refractive parameters in premature infants. Methods Case-control study. Premature infants who underwent the first fundus screening in the ophthalmic clinic of Xiamen children's Hospital from May 2018 to February 2019 were collected. The screening time was 4 to 6 weeks after birth or corrected gestational age from 31 to 32 weeks. The premature infants who were diagnosed with mild retinopathy of prematurity (ROP) in one eye or both eyes but did not receive any treatment were divided into ROP group and divided into zone Ⅱ subgroup and zone Ⅲ subgroup according to the region of ROP; the premature infants without ROP were divided into non-ROP group. The gestational age, birth weight, spherical equivalent, anterior chamber depth, vitreous depth, axial length, lens thickness and corneal refractive power were recorded and compared. Independent sample t-test, multiple linear regression analysis and Pearson correlation analysis were used. Resunfants were closely related to the spherical equivalent (all P less then 0.05). Conclusions In premature infants, the larger spherical equivalent is related to greater gestational age and heavier birth weight. The refractive parameters of mild ROP are characterized by shallow anterior chamber, thick lens, high corneal refractive power and small spherical equivalent. The spherical equivalent is closely related to the development of ROP. (Chin J Ophthalmol, 2021, 57 353-357).Objective To investigate the clinical characteristics, possible etiology and surgical efficacy of acute acquired concomitant esotropia (AACE) with atypical etiology. Methods Case-control study. Twelve patients, including 7 males and 5 females, who complained of diplopia and