Related Experiment Video
Updated: Jul 11, 2026

05:22
Iris Fixation via External Pentagram Suturing
Published on: May 5, 2022
[Strabismus and congenital cataracts].
P Merino1, P Gómez-de-Liaño, M R Gil
1Sección de Motilidad Ocular, Departamento de Oftalmología, HGU Gregorio Marañón, Madrid, España. pilimerino@gmail.com
Archivos De La Sociedad Espanola De Oftalmologia
|October 12, 2007
Summary
Strabismus is common in congenital cataracts and can worsen after surgery. While motor outcomes are often good, sensory results for strabismus treatment are less favorable.
Area of Science:
- Ophthalmology
- Pediatric ophthalmology
- Strabismus research
Context:
- Congenital cataracts are a significant cause of visual impairment in children.
- Strabismus, or eye misalignment, frequently co-occurs with congenital cataracts.
- Understanding the interplay between cataract surgery and strabismus is crucial for pediatric eye care.
Purpose:
- To determine the prevalence and characteristics of strabismus in children with congenital cataracts.
- To analyze the indications for and outcomes of strabismus treatment in this population.
- To evaluate the effectiveness of different treatment modalities for strabismus secondary to congenital cataracts.
Summary:
- A retrospective study of 21 cases revealed a 72.4% prevalence of strabismus in children with congenital cataracts.
- Strabismus developed or worsened in a significant proportion of cases after cataract surgery, with esotropia being more common than exotropia.
- Treatment, including botulinum toxin and strabismus surgery, yielded good motor results in 83.3% of cases but only 33.3% good sensory results.
Impact:
- This study highlights the high incidence of strabismus associated with congenital cataracts.
- Findings indicate that cataract surgery may influence the development or progression of strabismus.
- The results underscore the need for careful monitoring and tailored treatment strategies for strabismus in children undergoing congenital cataract surgery, emphasizing better motor than sensory outcomes.
Related Concept Videos
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...
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...
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...
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...
