Childhood blindness in Uzbekistan
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Published on: March 17, 2023
N K Rogers1, C E Gilbert, A Foster
1International Center for Eye Health, Institute of Ophthalmology, London, UK. nkrogers@compuserve.com
Insights
Childhood blindness in Uzbekistan is primarily caused by cataract, retinal dystrophies, and microphthalmos. Addressing unoperated cataracts is crucial for preventing vision loss in children.
Area of Science:
- Ophthalmology
- Public Health
- Pediatrics
Background:
- Childhood blindness presents a significant public health challenge globally.
- Understanding the specific causes of vision impairment in children is essential for targeted interventions.
- Uzbekistan's demographic and healthcare landscape necessitates a focused study on pediatric visual health.
Purpose of the Study:
- To determine the underlying causes of childhood blindness in Uzbekistan.
- To evaluate the current and future requirements for pediatric ophthalmic services in the country.
- To inform strategies for the prevention and management of visual impairment in Uzbek children.
Main Methods:
- A comprehensive eye examination was conducted on 671 children across seven schools for the visually impaired in Uzbekistan.
- The World Health Organization/Prevention Of Blindness (WHO/PBL) childhood blindness proforma was utilized for data collection.
- Study sites were strategically selected to ensure representative coverage of Uzbekistan's population centers.
Main Results:
- A substantial majority of examined children (75.4%) presented with blindness or severe visual impairment (visual acuity <6/60).
- The leading causes of blindness were cataract-related (35%), retinal dystrophies (24%), and microphthalmos (23%).
- Glaucoma was identified as a cause in approximately 5% of avoidable blindness cases.
Conclusions:
- Unoperated cataracts represent the most common preventable cause of childhood blindness in Uzbekistan.
- The high prevalence of retinal dystrophies may be linked to consanguineous marriage practices.
- Microphthalmos is a significant finding requiring further investigation and comparison with international data.
Purpose:
To elucidate the aetiology of childhood blindness in the Republic of Uzbekistan and to assess the needs for future provision of ophthalmic services for children.
Methods:
Six hundred and seventy-one children in seven schools for the blind and visually impaired throughout Uzbekistan were examined using the WHO/PBL (World Health Organization Prevention Of Blindness) childhood blindness proforma. The locations were chosen to give a representation of the major areas of population within the country.
Results:
Of the 671 children examined, 506 (75.4%) were blind or severely visually impaired (corrected visual acuity of less than 6/60 (20/200) in the better eye). Cataract-related blindness (35%), retinal dystrophies (24%) and microphthalmos (23%) formed the three largest diagnostic categories.
Conclusions:
The commonest avoidable cause of blindness was found to be cataract; the cause of poor vision may be due to unoperated cataract, aphakia, amblyopia or post-operative capsular fibrosis. The high proportion of retinal dystrophies may be related to the common practice of consanguineous marriage. The frequent finding of microphthalmos is discussed and compared with findings from other surveys. Glaucoma accounted for approximately 5% of the avoidable blindness.
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