Related Experiment Video
Updated: Jul 6, 2026
05:05
Ultrasound Cyclo Plasty in Eyes with Glaucoma
Published on: January 26, 2018
12.2K
Unilateral lifebuoy cataract: A case report
Yuka Koshiishi1, Mayumi Nagata, Hiroyuki Matsushima
1Department of Ophthalmology, Dokkyo Medical University Hospital, Tochigi, Japan.
Medicine
|August 16, 2024
Summary
This study presents a successful surgical technique for lifebuoy cataract, a rare congenital condition. The specialized approach improved visual acuity in a pediatric patient with this unique lens abnormality.
Area of Science:
- Ophthalmology
- Congenital Disorders
- Surgical Techniques
Background:
- Lifebuoy cataract is a rare congenital condition characterized by lens thinning.
- Limited treatment reports and standardized surgical approaches exist due to its rarity.
Purpose of the Study:
- To present a comprehensive case report and describe surgical techniques for lifebuoy cataracts.
- To enhance the understanding and management of this rare condition.
Main Methods:
- A 14-year-old boy with a congenital lifebuoy cataract underwent surgical intervention.
- The procedure involved a sclerocorneal incision, capsulorrhexis, cortex removal, and intraocular lens implantation.
- Neodymium-doped yttrium aluminum garnet laser capsulotomy was performed for residual posterior capsular opacification.
Main Results:
- Post-surgery, the patient's uncorrected visual acuity improved to 20/100 and best corrected visual acuity to 20/50.
- The surgical technique successfully addressed the unique morphology of the lifebuoy cataract.
Conclusions:
- This case report demonstrates a viable surgical approach for lifebuoy cataracts.
- Specialized techniques are crucial for managing this rare condition.
- Findings aim to guide ophthalmologists in improving patient care for lifebuoy cataracts.
Related Concept Videos
01:25Glaucoma: 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...
01:28Angle 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...
01:22Photoreceptors 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...