Related Experiment Video
Updated: May 15, 2026
11:20
Retinal Pigment Epithelium Transplantation in a Non-human Primate Model for Degenerative Retinal Diseases
Published on: June 14, 2021
Achieving patent peripheral iridectomy: '23G vitrector: sectoral pupil flutter technique'
Sudarshan Khokhar1, Shikha Gupta, Gaurav Kumar
1Dr. Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India.
International Ophthalmology
|December 26, 2012
Summary
A new surgical technique for peripheral iridectomy using a vitrector achieved a 100% success rate. This method effectively creates a patent iridectomy by engaging and cutting the iris with high vacuum suction.
Area of Science:
- Ophthalmology
- Surgical Techniques
- Medical Devices
Background:
- Peripheral iridectomy is crucial for managing angle-closure glaucoma.
- Existing methods for creating peripheral iridectomies can be complex or have variable success rates.
Observation:
- A novel technique utilizes intracameral carbachol to create a taut peripheral iris.
- A 23-gauge vitrector in aspiration mode engages the peripheral iris with high vacuum.
Findings:
- The vitrector, switched to cut mode, achieves a full-thickness iridectomy.
- Iris tissue fluttering and pupillary margin peaking indicate a patent iridectomy.
Implications:
- This technique offers a high success rate (100%) for peripheral iridectomy creation.
- The described method may provide a simpler and more effective approach to this surgical procedure.
Related Concept Videos
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...
01:27Open 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...
Drugs such as carbonic anhydrase inhibitors, α2- and...