Ophthalmic impairment at 7 years of age in children born very preterm

R W I Cooke1, L Foulder-Hughes, D Newsham

  • 1Department of Child Health, University of Liverpool, Institute of Child Health, Royal Liverpool Children's Hospital, Liverpool, UK. mc19@liv.ac.uk

Insights

Very preterm infants show higher rates of vision problems, linked to developmental delays. These ophthalmic impairments in children born prematurely may stem from generalized brain development issues.

Area of Science:

  • Ophthalmology
  • Developmental Pediatrics
  • Neuroscience

Background:

  • Preterm birth is a significant risk factor for various developmental issues.
  • Ophthalmic impairments can impact a child's overall development and quality of life.
  • Understanding the link between prematurity and vision is crucial for early intervention.

Purpose of the Study:

  • To assess the prevalence of ophthalmic impairments in very preterm infants compared to term infants.
  • To investigate the relationship between these impairments and brain ultrasound findings and retinopathy.
  • To correlate ophthalmic issues with visual perception, motor skills, and cognitive abilities.

Main Methods:

  • A cohort of 279 very preterm children and 210 term-born controls were assessed at age 7.
  • Ophthalmic assessments included visual acuity, stereopsis, and contrast sensitivity.
  • Cognitive and motor functions were evaluated using standardized tests, with perinatal data reviewed.

Main Results:

  • Preterm children had significantly higher rates of needing glasses, poor visual acuity, reduced stereopsis, and strabismus.
  • Ophthalmic impairments correlated with lower scores in motor and cognitive tests.
  • Retinopathy (Stage 3) was associated with poorer visual acuity, but impairments were not linked to cerebral ultrasound findings.

Conclusions:

  • Children born very preterm have an increased prevalence of ophthalmic impairments at primary school age, even without major neurodevelopmental issues.
  • These impairments are associated with deficits in visual perception, motor skills, and cognition.
  • A generalized abnormality in cortical development is suggested as the cause, rather than focal brain lesions.
Abstract

Related Concept Videos

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...
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...
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...