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Full-Circle Cauterization of Limbal Vascular Plexus for Surgically Induced Glaucoma in Rodents

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[Oscillopsia: pathophysiological mechanisms and treatment].

C Tilikete¹, L Pisella, D Pélisson

¹Unité de Neuro-Ophtalmologie, Hôpital Neurologique, Hospices Civils de Lyon, Bron. tilikete@lyon.inserm.fr

Revue Neurologique

|April 25, 2007

Summary

Oscillopsia, an unstable visual world illusion, stems from abnormal eye movements or impaired vestibulo-ocular reflexes. Understanding these mechanisms is key to developing effective treatments for this disabling neurological symptom.

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Area of Science:

Neuroscience
Ophthalmology
Physiology

Context:

Oscillopsia is a distressing visual symptom impacting patients with neurological disorders.
It involves the illusion of an unstable visual world, often linked to poor visual acuity.
Stable vision relies on retinal image stability during head and eye movements.

Purpose:

To review the physiology of systems supporting stable vision.
To explore pathophysiological mechanisms underlying oscillopsia.
To discuss available and emerging treatment options for oscillopsia.

Summary:

Visual stability depends on vestibulo-ocular reflexes, optokinetic reflexes, ocular fixation, and gaze-holding systems.
Space constancy mechanisms compensate for gaze shifts, maintaining perceived visual stability.
Oscillopsia commonly arises from abnormal eye movements (e.g., nystagmus) or impaired vestibulo-ocular reflexes; potential links to spatial constancy deficits are also explored.

Impact:

Clarifying oscillopsia mechanisms can guide the development of targeted therapeutic strategies.
Investigating spatial constancy deficits may reveal new insights into oscillopsia-like visual disturbances.
This review provides a comprehensive overview for researchers and clinicians managing patients with oscillopsia.