Trait
Very low visual acuity
A reduction in visual acuity with best corrected visual acuity between 1.40 (20/500) and 1.89 logMAR (up to roughly 20/1590).
Summary
- Body system
- Abnormality of the eye
Reference genomeGRCh38hg38
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Get my Genome Test6 genes linked to Very low visual acuity
Changes in these genes cause rare conditions in which Very low visual acuity 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.
| Gene | How often it is seen | Conditions |
|---|---|---|
| RPGRIP1RPGR interacting protein 1 | Very often (80–99%) | In 2 conditions |
| COL8A2collagen type VIII alpha 2 chain | Sometimes (5–29%) | In 1 condition |
| GRHL2grainyhead like transcription factor 2 | Sometimes (5–29%) | In 1 condition |
| OVOL2ovo like zinc finger 2 | Sometimes (5–29%) | In 1 condition |
| VSX1visual system homeobox 1 | Sometimes (5–29%) | In 1 condition |
| ZEB1zinc finger E-box binding homeobox 1 | Sometimes (5–29%) | 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
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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