Childhood blindness and low vision in Uganda

Area of Science:

• Ophthalmology
• Public Health
• Pediatrics

Background:

• Subnormal vision in childhood presents a significant public health challenge in Uganda.
• Understanding the causes and outcomes is crucial for effective prevention and rehabilitation strategies.

Purpose of the Study:

• To investigate the etiological factors and outcomes of childhood-onset subnormal vision in Uganda.
• To inform planning for the prevention and rehabilitation of vision impairment in children.

Main Methods:

• A study population of 1135 children with subnormal vision onset from birth to 15 years was analyzed.
• Clinical examinations and World Health Organisation (WHO) standardized forms were utilized.
• Key outcome measures included visual acuity, ocular pathology, treatment efficacy, and low vision assessments.

Main Results:

• Globally, 14.8% experienced visual impairment, 6.5% severe visual impairment, and 63.2% blindness according to WHO categories.
• Cataract (30.7%) and corneal ulceration (22.0%) were the leading causes of subnormal vision, with unsatisfactory surgical outcomes for cataracts.
• Cortical visual impairment and multiple impairments were more prevalent in the community group compared to the school group.

Conclusions:

• Cataract and corneal damage account for half of all childhood subnormal vision cases and are largely preventable.
• Enhancements in cataract surgery and expanded primary healthcare, including measles and rubella immunizations and improved nutrition, are vital for preventing corneal vision loss.
• Significant expansion of special education and public awareness campaigns are necessary to improve outcomes and reach a larger affected population.