We report the case of a 4-year-old boy with Marfan syndrome whose parents reported he had had low visual acuity since birth. On examination, there was microspherophakia and a small subluxation of the lens. The objective refraction was-23.75-2.75 x 70 in the right eye and-25.50-3.50 x 90 in the left eye. Since the microspherophakia and the high myopia severely affected the boy's quality of life, clear lens extraction, anterior vitrectomy, posterior surgical capsulotomy via the pars plana, and intraocular lens implantation were performed. Two years postoperatively, the patient had centered intraocular lenses and a corrected visual acuity of 20/30 in both eyes. The child was satisfied with his vision and was able to study and perform daily activities without visual limitations.

Disclosure of potential conflicts of interest: MFNQ, FQTF, GS and ACL reports nonfinancial support from Vision Line Brasil during the conduct of the present study. CRP has nothing to disclose.

To evaluate primary intraocular lens implantation in the treatment of children's aphakia in the Brazilian public health system and compare the outcomes among different age groups. Methods: Children aged 0-12 years old with unilateral or bilateral congenital/developmental cataracts and underwent primary intraocular lens implantation were included. Results: A total of 108 eyes from 68 children were evaluated, and the children were divided into four age groups (<7 months [mo]; 7 mo-2 years old [y/o]; 2-5 y/o, and >5 y/o) were evaluated. Nineteen eyes (17.59%) presented visual axis opacification as a postoperative complication, which was more frequently observed in the <7 mo age group (37.93%). The difference was significant between the <7 mo and >5 y/o age groups (p=0.002). Visual axis opacification was divided into two categories: pupillary membrane and lens cell proliferation. Eight eyes presented pupillary membrane, whereas 14 showed lens cell proliferation. Out of eight eyes with pupillary membrane, seven occurred in the <7 mo age group. The difference between the <7 mo age group and the 2-5 y/o or >5 y/o age group was significant (p=0.01). Lens cell proliferation was more frequent in the <7 mo and 2-5 y/o age groups, but the difference was significant only between the < 7 mo age group and >5 y/o age group (p=0.040). Glaucoma and glaucoma suspect cases were not observed during the follow-up period. Conclusions: The main complication found in the study was visual axis opacification, which had a higher incidence in children operated on or before the age of 7 months.