# astigmatism

> refractive error characterized by the optics of the eye to focus a point object into a sharp focused image on the retina, has symptom blurred vision.

**Wikidata**: [Q177895](https://www.wikidata.org/wiki/Q177895)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Astigmatism)  
**Source**: https://4ort.xyz/entity/astigmatism


## References

1. [Nuovo soggettario](https://thes.bncf.firenze.sbn.it/termine.php?id=30876)
2. Disease Ontology
3. Monarch Disease Ontology release 2018-06-29
4. Nuovo soggettario
5. [Phenocarta](https://gemma.msl.ubc.ca/phenotypes.html?phenotypeUrlId=DOID_11782&ncbiId=25806)
6. [Phenocarta](https://gemma.msl.ubc.ca/phenotypes.html?phenotypeUrlId=DOID_11782&ncbiId=1767)
7. [Phenocarta](https://gemma.msl.ubc.ca/phenotypes.html?phenotypeUrlId=DOID_11782&ncbiId=84441)
8. [Phenocarta](https://gemma.msl.ubc.ca/phenotypes.html?phenotypeUrlId=DOID_11782&ncbiId=5156)
9. [Phenocarta](https://gemma.msl.ubc.ca/phenotypes.html?phenotypeUrlId=DOID_11782&ncbiId=8801)
10. [Phenocarta](https://gemma.msl.ubc.ca/phenotypes.html?phenotypeUrlId=DOID_11782&ncbiId=10008)
11. [Identifiers.org](https://registry.identifiers.org/registry/doid)
12. Human Phenotype Ontology release 2018-03-08
13. National Library of Israel
14. GF WordNet
15. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)