Related Experiment Video
Updated: Jul 20, 2026

07:43
Endoscopic Endonasal Trans-sphenoidal Approach: Minimally Invasive Surgery for Pituitary Adenomas
Published on: January 17, 2018
19.1K
SCOTOMAS IN THE VISUAL FIELD AS THE FIRST SIGN OF INTRACRANIAL EXPANSION. CASE REPORT
Summary
Visual field loss can stem from various eye conditions or intracranial issues. Early diagnosis using perimetry and imaging aids in effective interdisciplinary treatment and improved patient outcomes.
Area of Science:
- Ophthalmology
- Neurology
- Medical Imaging
Background:
- Glaucoma is the leading cause of visual field loss, but other factors include local eye damage, endocrine orbitopathy, toxic/nutritional neuropathies, and intracranial lesions.
- Visual field defects provide crucial clues to the nature, location, and extent of neurological or ocular damage within the visual pathway.
- Perimetry is an accessible, non-demanding primary diagnostic tool for identifying visual field abnormalities.
Observation:
- A patient presented with visual field deficits at the Department of Ophthalmology.
- Subsequent computed tomography (CT) revealed an intracranial cause for the visual field loss.
- The case necessitated interdisciplinary management involving ophthalmology and neurosurgery.
Findings:
- Perimetric examination indicated visual field outages.
- Computed tomography (CT) identified an intracranial lesion.
- Surgical intervention at the Neurosurgical Department was performed.
Implications:
- Interdisciplinary collaboration between ophthalmology and neurosurgery is crucial for diagnosing and treating complex visual field loss.
- Prompt diagnosis through perimetry followed by targeted imaging (CT/MRI) can lead to effective treatment strategies.
- Surgical management of intracranial lesions causing visual field defects can result in significant visual recovery and improved perimetric findings.
Related Concept Videos
Glaucoma: 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...
Increased Intracranial Pressure l: Introduction
Intracranial hypertension is a sustained elevation of intracranial pressure (ICP) above 22 mm Hg. In supine adults, normal ICP is ~7–15 mm Hg.The rigid, nonexpandable cranium contains three components—brain tissue, blood, and cerebrospinal fluid (CSF)—that total ~1,700 mL in a typical adult: 1,400 mL brain (~80%), 150 mL blood (~10%), and 150 mL CSF (~10%). According to the Monro–Kellie doctrine, total intracranial volume is effectively fixed. When one component expands, CSF and venous blood...
Increased Intracranial Pressure ll: Pathophysiology
Increased intracranial pressure (ICP) refers to a potentially life-threatening rise in pressure inside the skull. This usually happens when there is a major change in the volume of brain tissue, blood, or cerebrospinal fluid (CSF) — the three components inside the skull. According to the Monro-Kellie doctrine, if the volume of one component increases, the volumes of the other components must decrease to maintain normal pressure. If this does not happen, ICP rises.The process often begins with...

