Childhood blindness in India

A K Sil1, C Gilbert

  • 1Vivekananda Mission Ashram, Medinipur, West Bengal.

Insights

This study presents the first population-based data on childhood blindness in India, highlighting its prevalence and avoidable causes. It discusses strategies for blindness control and future research needs.

Area of Science:

  • Ophthalmology
  • Public Health
  • Pediatrics

Background:

  • There is a lack of published data on the prevalence and incidence of blindness in children.
  • Community-based rehabilitation programs in India have begun collecting crucial population-based data on childhood blindness.

Purpose of the Study:

  • To present population-based data on the prevalence and magnitude of blindness in children in India.
  • To identify avoidable causes of childhood blindness.
  • To discuss strategies for the control of childhood blindness at various healthcare levels.

Main Methods:

  • Utilized data from community-based rehabilitation programs in two Indian states.
  • Analysis of population-based data to determine prevalence and causes of childhood blindness.

Main Results:

  • Provides the first population-based data on childhood blindness in India.
  • Identifies key causes contributing to blindness in children within the studied population.

Conclusions:

  • Highlights the significant burden of childhood blindness in India.
  • Emphasizes the need for targeted interventions to address avoidable causes.
  • Suggests areas for future research in childhood blindness prevention and management.

Related Concept Videos

Photoreceptors and Visual Pathways01:22

Photoreceptors and Visual Pathways

At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category, whereas...
Vision During Infancy and Toddlerhood01:23

Vision During Infancy and Toddlerhood

At birth, vision is the least developed of the major senses because the visual system is still structurally and neurologically immature. The retinas, optic nerves, and visual regions of the brain continue to mature after birth. As a result, newborns have limited visual acuity, or sharpness and clarity of vision, and respond best to objects viewed at close range, roughly 8 to 12 inches away.Rapid Visual DevelopmentVision improves rapidly during the first few months as infants observe and...
Focusing of Light in the Eye01:16

Focusing of Light in the Eye

Light rays enter the eye through the cornea, a transparent dome-shaped tissue that is the eye's outermost layer. The cornea bends or refracts, light rays traveling to the pupil. The shape of the cornea determines how much of the light is bent and whether the image will be focused correctly on the retina at the back of the eye. Once the light has passed through both refraction layers, it converges into a single focal point onto a small area. This is where photoreceptors start transforming...
Diabetic Retinopathy01:27

Diabetic Retinopathy

DefinitionDiabetic retinopathy is a microvascular complication of diabetes affecting the retinal blood vessels.Risk FactorsDiabetic retinopathy is present in almost all individuals with type 1 diabetes and more than 60% of those with type 2 diabetes after two decades of disease.The risk increases with poor glycemic control, hypertension, dyslipidemia, smoking, pregnancy, and puberty.Although cataracts and glaucoma are also more frequent in people with diabetes, retinopathy remains the leading...
Glaucoma: Overview01:25

Glaucoma: Overview

Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...