Related Experiment Video
Updated: Jul 11, 2026

Subjective Refraction Test Using a Smartphone for Vision Screening
Published on: October 18, 2024
[Childhood blindness. VISION 2020 and experiences in an African city]
R F Guthoff1, M P Schittkowski
1Universitäts-Augenklinik Rostock, 18057, Rostock. rudolf.guthoff@med.uni-rostock.de
Insights
Childhood blindness is a major global health challenge, particularly in low-income countries. This study highlights the effectiveness of cataract surgery and intraocular lens implantation in restoring sight to blind children.
Area of Science:
- Ophthalmology
- Global Health
- Pediatric Medicine
Background:
- Childhood blindness disproportionately affects low-income regions, with cataracts being a primary cause.
- Addressing avoidable blindness in children is a global health priority, as emphasized by the WHO.
- Cataract surgery in children can yield significant sighted life-years, comparable to that of senile cataracts.
Purpose of the Study:
- To analyze and treat avoidable blindness in children through a partnership between Rostock Ophthalmological Department and St. Joseph's Hospital in Kinshasa.
- To introduce appropriate cataract surgery procedures for children in developing countries.
- To evaluate the efficacy of injectable synthetic intraocular lens implantation in pediatric cataract surgery.
Main Methods:
- A collaborative effort focused on surgical interventions for childhood blindness.
- Implementation of standardized cataract surgery techniques.
- Utilizing injectable synthetic intraocular lenses for cataract removal and vision restoration.
Main Results:
- Approximately 600 procedures were performed over seven years.
- 400 cases involved congenital cataracts, predominantly bilateral.
- Successful restoration of sight in children with operable cataracts.
Conclusions:
- Cataract surgery, particularly with intraocular lens implantation, is a highly effective treatment for childhood blindness.
- International partnerships are crucial for addressing pediatric eye conditions in resource-limited settings.
- Continued efforts are needed to combat avoidable childhood blindness globally.
Abstract:
The struggle against childhood blindness is being given high priority by the WHO. In regions of the world countries where the income per head is low there are 5 times as many blind children as in wealthy countries (1.5/1000 vs 0.3/1000 children). In developing countries cataract is regarded as the main cause of blindness in both childhood and adulthood. If all cataracts that would lead to blindness were operated on, despite a comparatively smaller number of affected persons a similar number of sighted life-years could be achieved throughout the world to that for patients with senile cataract. The partnership between the Rostock Ophthalmological Department and St. Joseph's Hospital in Kinshasa focuses on the analysis and treatment of avoidable blindness in children. Its main concern is the introduction of appropriate procedures for cataract surgery, in most cases combined with the implantation of injectable synthetic intraocular lenses. In the last 7 years about 600 procedures have been jointly performed, including 400 of congenital cataract, mostly bilateral.
Related Concept Videos
Photoreceptors and Visual Pathways
Vision
Diabetic Retinopathy
Glaucoma: Overview
Angle Closure Glaucoma: Treatment
Open Angle Glaucoma: Treatment
Drugs such as carbonic anhydrase inhibitors, α2- and...

