Risk of visual axis opacification in infants with and without primary IOL implantation after congenital cataract surgery performed during the first 4 months of age.

"Declarations Ethical approvalThis retrospective chart review study involving human participants was in accordance with the ethical standards of the institutional and national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards (Institutional Review Board and Ethics Committee of the University Hospital Motol and 2nd Faculty of Medicine, Charles University in Prague, reference No.: EK-648/21). Informed consentInformed consent was obtained from legal guardians of all individual participants included in the study. Competing interestsThe authors declare no competing interests. Competing interests The authors declare no competing interests."

"Funding Open access publishing supported by the National Technical Library in Prague. This work is supported by Ministry of Health, Czech Republic–conceptual development of research organization, Motol University Hospital, Prague, Czech Republic 00064203. Financial support was used for statistical analysis and language revision."