Ocular growth and morbidity in preterm children without retinopathy of prematurity

Murat Özdemir1, Sedat Koylu2

  • 1Department of Ophthalmology, Faculty of Medicine, Kahramanmaras Sutcu Imam University, Kahramanmaras, 46100, Turkey. drmozdemir@hotmail.com.

Insights

Premature birth without retinopathy of prematurity (ROP) is linked to longer eye growth, but not significant refractive errors. However, conditions like strabismus and amblyopia may be more common in these children.

Area of Science:

  • Ophthalmology
  • Pediatric Ophthalmology
  • Developmental Biology

Background:

  • Premature birth is a significant risk factor for various ocular abnormalities.
  • Retinopathy of prematurity (ROP) is a well-known complication, but ocular outcomes in preterm infants without ROP require further investigation.

Purpose of the Study:

  • To investigate ocular growth and associated morbidities in preschool and school-aged children born prematurely but without a history of ROP.
  • To determine if prematurity influences refractive errors and other visual functions in children without ROP.

Main Methods:

  • A population-based study involving 26 children (5-7 years old) born prematurely without ROP.
  • Comprehensive ocular examinations including visual acuity, cycloplegic refraction, color vision, ocular alignment, and anterior/posterior segment assessments.
  • Measurements of anterior chamber depth, lens thickness, vitreous length, and total axial length.

Main Results:

  • No correlation was found between the degree of prematurity and visual acuity or refractive state.
  • Prevalence of strabismus (7.7%), amblyopia (7.7%), and anisometropia (15%) was noted.
  • Total axial length and vitreous length showed significant positive correlations with gestational age and birth weight.

Conclusions:

  • Increased ocular axial and vitreous length in preterm children without ROP, correlating with gestational age and birth weight, does not lead to significant refractive errors.
  • Preterm children without ROP may have a higher prevalence of strabismus, amblyopia, and anisometropia compared to normally delivered children.
Abstract

Related Concept Videos

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...
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...
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...
Open Angle Glaucoma: Treatment01:27

Open Angle Glaucoma: Treatment

In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This causes a buildup of aqueous humor in the anterior chamber, leading to a sudden increase in intraocular pressure. The treatment for open-angle glaucoma focuses on reducing the elevated intraocular pressure by either decreasing the secretion of aqueous humor or increasing its outflow.
Drugs such as carbonic anhydrase inhibitors, α2- and...
Angle Closure Glaucoma: Treatment01:28

Angle Closure Glaucoma: Treatment

Angle-closure glaucoma, or closed-angle glaucoma, is an eye condition where the iris bulges out and blocks the iridocorneal angle, resulting in a buildup of aqueous humor and increased intraocular pressure. Immediate medical attention is necessary due to the sudden onset of symptoms. The treatment for angle-closure glaucoma includes short-term and long-term approaches. Short-term treatment involves using eye drops like pilocarpine to lower intraocular pressure by increasing aqueous humor...