Inclusion and exclusion criteria
Inclusion and exclusion criteria: (i) The subjects should be cataract
infants younger than 2 years (P) who received cataract extraction with
primary IOL implantation (I) or primary aphakia (C); (ii) The clinical
outcomes on postoperative VA, complications (glaucoma, strabismus,
nystagmus and visual axial opacity) (O) should be evaluated; (iii) Given
the age at the surgery and the age at the last visit were significant
factors for the postoperative outcomes in congenital cataract patients,
studies in which the age at the surgery or last visit in these two
groups did not match were excluded; (iv) Studies without detailed
outcome on the postoperative visual performance were excluded;
(v)
Studies reporting data on individual patient rather than individual
surgery eye were excluded; (vi) (potentially) overlapping study
populations that reported same outcome were excluded; (vii) Non-English
publications were excluded.