Related Experiment Video
Updated: Jul 28, 2026
Assessing Early Stage Open-Angle Glaucoma in Patients by Isolated-Check Visual Evoked Potential
Published on: May 25, 2020
Evaluation of screening procedures for congenital cataracts
G Magnusson1, P Jakobsson, U Kugelberg
1Department of Ophthalmology, Sahlgrenska University Hospital, Göteborg, Sweden. gunilla.magnusson@oft.gu.se
Insights
Maternity ward screening for congenital cataracts significantly improves early detection compared to well-baby clinics or no screening. This approach ensures timely intervention for better treatment outcomes in infants.
Area of Science:
- Ophthalmology
- Pediatrics
- Public Health
Background:
- Congenital cataracts are a leading cause of childhood visual impairment.
- Early detection and intervention are crucial for optimal visual development.
- Swedish screening protocols for congenital cataracts vary, necessitating efficacy evaluation.
Purpose of the Study:
- To compare the effectiveness of two Swedish congenital cataract screening methods against no screening.
- To assess the impact of screening timing on early diagnosis and surgical intervention.
Main Methods:
- Retrospective study of children diagnosed with congenital cataract between 1992-1998.
- Comparison of referral and surgery ages across three regions: maternity ward screening, well-baby clinic screening, and no screening.
- Analysis of screening data based on age at detection and intervention.
Main Results:
- Maternity ward screening (Region 1) demonstrated significantly earlier detection of congenital cataracts compared to well-baby clinics (Region 2) and no screening (Region 3).
- At 21 days, detection rates were 55% (Region 1) vs. 18% (Regions 2 & 3); at 100 days, rates were 78% vs. 64%.
- Maternity ward screening identified more cases (22/100,000) earlier than other methods (15/100,000), though 50% of well-baby clinic detections were delayed.
Conclusions:
- Eye screening during maternity ward visits is superior for early congenital cataract detection compared to well-baby clinic screening or no screening.
- Routine screening at well-baby clinics is recommended, but must occur within the critical window for effective treatment.
- Implementing effective screening protocols is vital for preventing vision loss from congenital cataracts.
Aim:
To evaluate the efficacy of two different Swedish screening procedures for early detection of congenital cataracts in comparison with no screening.
Methods:
Children born between January 1992 and December 1998 in Swedish regions with an established eye-screening routine procedure, diagnosed with congenital cataract, and operated on before 1 y of age, were included in a retrospective study. Age at referral and age at time of the operation were compared between regions using different screening procedures: screening in the maternity wards (Region 1), at the well-baby clinics (Region 2) and one region without any screening (Region 3).
Results:
Seventy-two children were included in the study. Concerning early diagnosis and surgery, Region 1 differed significantly from Regions 2 and 3, which were more similar and were combined for further analysis. The difference in detected cases was greatest at 21 d of age (55% vs 18%; p < 0.001), but persisted even at 100 d of age (78% vs 64%; p < 0.02). Region 1 screening resulted in more and earlier cases detected than the other two regions (22 vs 15 per 100,000 births). In 72% of all cases, surgery was performed in response to referrals from either the maternity wards (36%), or the well-baby clinics (36%). However, half of the cases from the well-baby clinics were detected too late, i.e. at > 100 d.
Conclusion:
Eye screening in the maternity ward is preferable to well-baby clinic screening and to no screening at all, since it leads to early detection. Screening should also be performed routinely at well-baby clinics within the period when successful treatment is possible.
