Related Experiment Video
Updated: Jun 10, 2026

04:59
Rotating the Intraocular Lens to Prevent Posterior Capsular Opacification in Cataract Surgeries
Published on: July 7, 2023
Rapid capsular phimosis in retinitis pigmentosa
1Department of Ophthalmology, University of Oklahoma College of Medicine, Oklahoma City, Oklahoma 73104, USA.
Summary
Patients with retinitis pigmentosa experienced rapid capsular phimosis after cataract surgery. This suggests potential underlying factors like zonular issues or fibrosis contributing to the rapid progression.
Area of Science:
- Ophthalmology
- Retinal Diseases
- Cataract Surgery
Background:
- Retinitis pigmentosa (RP) is a group of inherited disorders characterized by progressive vision loss.
- Cataract development is common in patients with RP.
- Phacoemulsification with intraocular lens (IOL) implantation is a standard surgical procedure for cataracts.
Observation:
- A 43-year-old man with RP developed rapid anterior capsular phimosis within 3 weeks post-cataract surgery.
- The patient underwent uncomplicated phacoemulsification with a single-piece acrylic IOL.
- Anterior YAG capsulotomy was successfully performed to address the phimosis in both eyes.
Findings:
- Capsular phimosis, or capsular contraction syndrome, is a known complication following cataract surgery.
- While capsular phimosis is documented in RP patients, the rapid progression in this case is notable.
- The single-piece IOL may have contributed to the accelerated capsular contraction compared to previous reports.
Implications:
- Zonular dehiscence or increased lens epithelial cell fibrosis associated with RP may predispose to rapid capsular phimosis.
- Alternative surgical techniques such as using a three-piece IOL, a capsular tension ring, or radial relaxing incisions may mitigate this complication in RP patients.
- Further research is warranted to elucidate the specific mechanisms and optimize surgical management for RP patients undergoing cataract surgery.
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...
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...