Related Experiment Video
Updated: May 23, 2026
05:22
Iris Fixation via External Pentagram Suturing
Published on: May 5, 2022
Anterior segment angiography in strabismus surgery
1Hôpital Ophtalmique Jules Gonin, Lausanne, Switzerland. georges.klainguti@fa2.ch
Klinische Monatsblatter Fur Augenheilkunde
|April 13, 2012
Summary
Anterior segment angiography is valuable for planning repeat eye surgeries in patients with multiple prior operations. This imaging helps identify potential risks like iris ischemia, guiding surgical decisions to prevent complications.
Area of Science:
- Ophthalmology
- Surgical Planning
- Vascular Imaging
Background:
- The anterior segment of the eye relies on anterior ciliary arteries for vascularization.
- Surgery involving multiple recti muscles can compromise this blood supply.
- Risk of anterior segment ischemia increases with repeated ocular surgeries.
Purpose of the Study:
- To evaluate the utility of iris fluorescein angiography as a pre-operative assessment.
- To determine the risk of anterior segment ischemia in patients undergoing repeat oculomotor surgery.
- To inform surgical planning for complex, previously operated eyes.
Main Methods:
- Retrospective analysis of 10 patients undergoing pre-operative iris fluorescein angiography.
- Patients had a history of second or third oculomotor surgery.
- Angiographic findings were correlated with surgical history and patient outcomes.
Main Results:
- Four out of 10 patients exhibited relative iris ischemia.
- Ischemia was observed in patients with multiple prior surgeries, irrespective of cardiovascular risk factors.
- Surgical plans were modified in these 4 patients based on angiography results.
Conclusions:
- Anterior segment angiography is a useful tool for pre-operative assessment in multi-operated patients.
- It helps identify patients at risk for anterior segment ischemia.
- This imaging aids in minimizing surgical complications and optimizing surgical planning.
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...