Lens Thickness in Infants and Children with Cataracts

Area of Science:

• Ophthalmology
• Pediatric ophthalmology
• Biomedical imaging

Background:

• Congenital cataracts are a leading cause of visual impairment in infants.
• Early detection and understanding of risk factors are crucial for timely intervention.
• Lens thickness has not been extensively studied as a potential indicator in pediatric cataracts.

Purpose of the Study:

• To determine the association between lens thickness and congenital cataract in children aged 0-5 years.
• To evaluate the feasibility of measuring lens thickness using ultrasound biomicroscopy (UBM).

Main Methods:

• A prospective, multicenter, case-control study was conducted.
• 118 participants (171 eyes) aged 0-5 years were enrolled.
• Lens thickness was measured using ultrasound biomicroscopy (UBM) on 342 images.

Main Results:

• Mean lens thickness was 3.60 ± 0.17 mm in non-cataract eyes versus 3.16 ± 0.61 mm in cataract eyes (P < 0.0001).
• Lens thickness <3.5 mm was significantly associated with increased odds of cataract (adjusted OR = 5.99) in infants 0-7 months old.
• Lens thickness was also significantly associated with cataract laterality in this age group (P < 0.0001).

Conclusions:

• Quantitative UBM is a viable method for assessing lens thickness in infants and children with congenital cataracts.
• Infants with congenital cataracts exhibit thinner lenses compared to controls.
• Abnormal lens thickness is a significant risk factor associated with pediatric cataract.