Tag: Visual Field Loss

November 3, 2025 / Mohammed looti

TUNNEL VISION

Introduction and Definition of Tunnel Vision Tunnel vision, clinically known as tubular vision, describes a profound visual field defect characterized by the severe constriction of peripheral sight, resulting in the perception that the world is viewed through a narrow tube, funnel, or long tunnel. This condition is defined by a significant reduction in the visual […]

October 6, 2025 / Mohammed looti

BITEMPORAL HEMIANOPIA

Bitemporal Hemianopia Introduction: Core Definition and Key Mechanism Bitemporal hemianopia (BTH) represents a distinctive and often debilitating form of visual field loss that impacts both eyes concurrently. Characterized by a complete or partial absence of vision in the outermost regions of the visual field, specifically the temporal (outer) halves of each eye, this condition creates […]