Related Experiment Video
Updated: Apr 16, 2026
Pre-Chiasmatic, Single Injection of Autologous Blood to Induce Experimental Subarachnoid Hemorrhage in a Rat Model
Published on: June 18, 2021
Delayed Optochiasmal Arachnoiditis following Intervention for a Subarachnoid Haemorrhage
Patrick Yu-Wai-Man1, Christopher Neoh2
1Newcastle Eye Centre, Royal Victoria Infirmary, Newcastle upon Tyne, NE1 4LP, United Kingdom. ; Wellcome Trust Centre for Mitochondrial Research, Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK.
Survivors of subarachnoid hemorrhage often experience visual loss due to ischemia. This case report details unusual delayed visual impairment after anterior communicating artery aneurysm treatment, exploring causes and diagnostic challenges.
Area of Science:
- Neuroscience
- Ophthalmology
- Vascular Surgery
Background:
- Visual morbidity is a frequent complication in subarachnoid hemorrhage (SAH) survivors.
- Typically, visual impairment results from vascular ischemia during the initial SAH event.
- Anterior communicating artery aneurysms are a significant cause of SAH.
Purpose of the Study:
- To report an uncommon case of delayed, progressive visual loss after surgical intervention for a ruptured anterior communicating artery aneurysm.
- To investigate potential etiological factors contributing to this delayed visual morbidity.
- To highlight diagnostic challenges and pitfalls associated with such cases.
Main Methods:
- Case report detailing a patient's clinical course following treatment for an anterior communicating artery aneurysm.
- Review of relevant literature on visual disturbances post-SAH and aneurysm treatment.
- Analysis of potential causes including ischemia, inflammation, and iatrogenic factors.
Main Results:
- The patient presented with delayed and progressive visual loss, an atypical presentation.
- The visual deterioration was not immediately attributable to the initial ischemic insult from the SAH.
- Diagnostic evaluation revealed complexities in identifying the precise cause of the delayed visual impairment.
Conclusions:
- Delayed visual loss can occur following treatment for anterior communicating artery aneurysms, presenting uniquely.
- Etiologies may be multifactorial and distinct from acute ischemic events.
- Awareness of potential diagnostic pitfalls is crucial for timely and accurate management of visual complications.
