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Visual acuity and pupillary reactions after peribulbar anaesthesia
S J Talks1, N H Chong, J M Gibson
1Department of Ophthalmology, East Birmingham Hospital.
The British Journal of Ophthalmology
|January 1, 1994
Summary
Peribulbar anesthesia can cause temporary vision loss, including no light perception, in cataract surgery patients. While vision typically improves post-surgery, patients should be informed of potential temporary visual impairment.
Area of Science:
- Ophthalmology
- Anesthesiology
Background:
- Cataract surgery is a common procedure.
- Peribulbar anesthesia is frequently used for ophthalmic surgeries.
- Optic nerve function can be affected by anesthesia.
Purpose of the Study:
- To evaluate the effect of peribulbar anesthesia on optic nerve function.
- To assess visual acuity and relative afferent pupil defect (RAPD) before and after cataract surgery.
Main Methods:
- Study included 20 patients undergoing cataract surgery.
- Visual acuity and RAPD were measured pre- and post-operatively.
- Patient-reported outcomes regarding vision during surgery were recorded.
Main Results:
- All patients experienced decreased visual acuity.
- 25% had no light perception; 85% developed RAPD.
- 35% showed improved visual acuity immediately post-surgery; no patients saw instruments.
Conclusions:
- Peribulbar anesthesia can cause significant, though often temporary, visual disturbances.
- Patients require counseling regarding potential vision loss and delayed recovery.
- RAPD assessment can reassure patients about intraoperative vision.