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Updated: Dec 18, 2025

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Photopsia.

Jasvir Virdee1, Susan P Mollan2,3

  • 1Ophthalmology, Queen Elizabeth Hospital Birmingham, Birmingham, UK jasvir.virdee@doctors.org.uk.

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|June 16, 2020
PubMed
Summary
This summary is machine-generated.

Photopsia, or seeing flashes of light without an external source, presents a diagnostic challenge. This review covers common causes, assessment strategies, and the importance of interdisciplinary collaboration for managing visual disturbances.

Keywords:
EYE MOVEMENTSNEURO-OPHTHALMOLOGYOPHTHALMOLOGYPUPILSVISION

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Area of Science:

  • Ophthalmology
  • Neurology

Background:

  • Photopsia, characterized by sudden, brief, flash-like visual disturbances without external light, presents a diagnostic challenge.
  • The symptom can stem from a wide array of neurological and ophthalmological conditions.

Observation:

  • This review synthesizes common etiologies of photopsia.
  • It outlines systematic approaches to patient assessment and diagnostic workup.
  • A case of acute zonal occult outer retinopathy is presented to exemplify diagnostic considerations.

Findings:

  • The differential diagnosis for photopsia is broad, encompassing both ocular and systemic causes.
  • Effective management necessitates a thorough evaluation and understanding of underlying pathologies.

Implications:

  • Close interdisciplinary collaboration between ophthalmologists and neurologists is crucial for accurate diagnosis and effective patient management.
  • Understanding the diverse origins of photopsia aids in timely and appropriate treatment.