This is a multi-centre, open-label, parallel-group randomized controlled trial with the following objectives: Firstly, the investigators aim to evaluate the efficacy of web-based visual and perceptual training therapy on visual function in children with postoperative congenital ectopia lentis. Secondly, the investigators target to investigate the in stereoacuity, quality of life scores, and treatment compliance following visual and perceptual training intervention. Thirdly, to explore the safety profile of visual and perceptual training therapy software in this specific patient population. Lastly, this study aims to provide evidence-based recommendations for visual rehabilitation training strategies in children with postoperative congenital ectopia lentis in the Chinese population.
Aged 4-12 years, with no gender restriction;
Diagnosed with congenital ectopia lentis;
Underwent bilateral lensectomy combined with IOL scleral fixation, and within 1 month ± 1 week after the second-eye surgery;
Best-corrected visual acuity (BCVA) of unilateral or bilateral eyes is no worse than 20/200 but below the normal level for the corresponding age: for 4-year-old children, BCVA ≤ 20/40; for children aged 5 years and above, BCVA ≤ 20/30;
History of ocular trauma or previous ocular surgery other than the study-related procedure;
Unable to cooperate with treatment, examinations, and follow-up assessments;
Complicated with recurrent lens dislocation, severe cataract (dense, axial, opacity diameter >3 mm and affecting central vision), secondary glaucoma, corneal endothelial decompensation, retinal detachment, or other conditions requiring urgent surgical intervention;
Presence of diplopia in either eye;