09Diseases of the visual system Impairment of visual functions Subjective visual experiences
9D53
category
Entoptic phenomena
Definition Entoptic phenomena are visual phenomena caused by changes within the eye.
Also indexed as
Dyschromatopsia Entoptic phenomena Halos Metamorphopsia, distortions Monocular diplopia Photopsia Polyopia Strabismic diplopia Visual distortions of shape and size
Nearby in Subjective visual experiences
International Classification of Diseases, Eleventh Revision (ICD-11), World Health Organization (WHO) 2019/2021, https://icd.who.int/browse11. Licensed under Creative Commons Attribution-NoDerivatives 3.0 IGO (CC BY-ND 3.0 IGO).
Release 2026-01.
View this entity in the official WHO ICD-11 browser .
This page reproduces WHO classification content for reference. It is not
medical advice and must not be used to diagnose or treat. For coding
decisions, consult the official release and your national coding guidelines.
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