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Trait

Conjunctival hyperemia

Dilatation of the blood vessels of the conjunctiva leading to a red appearance of the sclera.

HPO HP:0030953

Summary

Also called
Conjunctival hyperaemia, Conjunctival injection, Conjunctival vascular congestion
Body system
Abnormality of head or neckAbnormality of the cardiovascular systemAbnormality of the eye

8 genes linked to Conjunctival hyperemia

Changes in these genes cause rare conditions in which Conjunctival hyperemia is seen. Most people with this trait have none of those conditions, and a gene on this list says nothing about anyone's own genome.

GeneHow often it is seenConditions
NLRP3NLR family pyrin domain containing 3AlwaysIn 2 conditions
AP1G1adaptor related protein complex 1 subunit gamma 1Often (30–79%)In 1 condition
FASFas cell surface death receptorOften (30–79%)In 1 condition
HLA-DRB1major histocompatibility complex, class II, DR beta 1Often (30–79%)In 1 condition
MAPTmicrotubule associated protein tauOften (30–79%)In 1 condition
PTPN22protein tyrosine phosphatase non-receptor type 22Often (30–79%)In 1 condition
SHMT2serine hydroxymethyltransferase 2Often (30–79%)In 1 condition
TNFRSF1ATNF receptor superfamily member 1AOften (30–79%)In 1 condition

How often is among people with one of the gene's conditions, the most often across them, as the Human Phenotype Ontology records it. These pages describe traits and the research behind them; they are not a diagnosis, and a doctor or genetic counsellor is the person to ask about symptoms.

Broader traits

Abnormal conjunctiva morphologyRed eye

Where this comes from

  • The Human Phenotype Ontology, release 2026-09-01: the trait, its names, its definition and the genes linked to it. Find out more at hpo.jax.org.
  • Data release 2026.10.16-c6eea6bf.

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