Last reviewed · How we verify

sodium fluorescein

University Hospitals Cleveland Medical Center · FDA-approved active Small molecule

Sodium fluorescein is a fluorescent dye that absorbs light and emits fluorescence, allowing visualization of ocular structures and blood flow in diagnostic imaging.

Sodium fluorescein is a fluorescent dye that absorbs light and emits fluorescence, allowing visualization of ocular structures and blood flow in diagnostic imaging. Used for Diagnostic imaging in fluorescein angiography for evaluation of retinal and choroidal vasculature, Assessment of retinal vascular diseases including diabetic retinopathy, age-related macular degeneration, and retinal vein occlusion, Evaluation of anterior segment structures and corneal integrity.

At a glance

Generic namesodium fluorescein
Also known asFluorescein, Fluorocyte, AK-Fluor, Fluorescite
SponsorUniversity Hospitals Cleveland Medical Center
Drug classDiagnostic fluorescent dye
ModalitySmall molecule
Therapeutic areaOphthalmology
PhaseFDA-approved

Mechanism of action

Sodium fluorescein is a small-molecule fluorescent tracer that binds minimally to plasma proteins and rapidly distributes through the vasculature. When excited by blue light (typically 488 nm), it emits green fluorescence (510 nm), enabling real-time visualization of retinal and choroidal blood flow patterns, vascular leakage, and structural abnormalities in fluorescein angiography and other ophthalmic imaging modalities.

Approved indications

Common side effects

Key clinical trials

Primary sources

Every claim on this page is sourced from regulatory or scientific primary sources. See our editorial policy for full methodology.

SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results

Competitive intelligence

For the full competitive landscape — auto-detected comparators, recent regulatory actions across the set, upcoming PDUFA, patent timeline, sponsor landscape: