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Resolution visual fields in children surgically treated for bilateral congenital cataract
Lene Martin1, Gunilla Magnusson, Zoran Popovic
1Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden. lene.martin@ki.se
Investigative Ophthalmology & Visual Science
|March 18, 2008
Summary
Children surgically treated for congenital cataracts show lasting deficits in both visual acuity and peripheral vision. Early treatment for dense cataracts improves outcomes but does not fully restore spatial vision, impacting long-term visual function.
Area of Science:
- Ophthalmology
- Pediatric Medicine
- Visual Neuroscience
Background:
- Congenital cataract is a leading cause of childhood visual impairment.
- Early surgical intervention is crucial for visual development.
- Long-term visual outcomes, including spatial vision, require further investigation.
Purpose of the Study:
- To assess best-corrected visual acuity (BCVA) in children treated for congenital cataract.
- To evaluate peripheral visual sensitivity using high-pass resolution (HRP) visual fields.
- To compare visual function in surgically treated children with healthy controls.
Main Methods:
- Retrospective analysis of 16 children (aged 10-15) surgically treated for congenital cataract (dense or partial).
- Measurement of BCVA and HRP visual fields.
- Comparison with data from 22 age-matched healthy children.
Main Results:
- Children with cataract had significantly lower BCVA (median 0.55) than controls (median 1.2) (P < 0.0001).
- Five children met the World Health Organization definition of visual impairment (<0.3 acuity).
- Children with prior dense bilateral cataract showed reduced peripheral sensitivity (P = 0.004).
Conclusions:
- Surgical treatment for congenital cataract, even early, results in persistent spatial vision impairment.
- Visual acuity is more affected than peripheral visual fields.
- Findings are critical for interpreting visual field tests in post-cataract surgery patients, especially for glaucoma screening.
