Corneal ulcers in two children wearing paragon corneal refractive therapy lenses

Marian S Macsai1

  • 1Division of Ophthalmology, Evanston Northwestern Healthcare, Chicago, Illinois, USA. mmacsai@enh.org

Eye & Contact Lens
|January 25, 2005
PubMed

Insights

Two children developed bacterial corneal ulcers from wearing Paragon Corneal Refractive Therapy (CRT) lenses nightly. Prompt antibiotic treatment preserved vision, but caution is advised when prescribing CRT lenses for pediatric patients.

Area of Science:

  • Ophthalmology
  • Pediatric Ophthalmology

Background:

  • Corneal Refractive Therapy (CRT) lenses are approved for all ages, including children.
  • Nightly wear of CRT lenses is a common treatment for myopia control.

Observation:

  • Two pediatric cases of bacterial corneal ulcers developed within six months of nightly CRT lens wear.
  • Causative agents identified were Pseudomonas aeruginosa and Haemophilus influenza.

Findings:

  • Both patients experienced rapid resolution of corneal ulcers with intensive antibiotic therapy.
  • Vision was preserved in both cases without the need for surgical intervention.

Implications:

  • Pediatric use of CRT lenses may pose unique risks, including sight-threatening corneal ulcers.
  • Ophthalmologists should exercise caution and ensure informed consent regarding potential complications before prescribing CRT lenses for children.
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...
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...
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...