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astigmatism

refractive error in optics
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astigmatism

Summary

astigmatism ranks in the top 2% of general entities by monthly Wikipedia readership (121 views/month).[1]

Key Facts

  • astigmatism's subclass of is recorded as optical aberration[2].
  • astigmatism's subclass of is recorded as refractive error[3].
  • astigmatism's Freebase ID is recorded as /m/02sn0g[4].
  • astigmatism's facet of is recorded as optics[5].
  • astigmatism's different from is recorded as astigmatism[6].
  • astigmatism's Google Knowledge Graph ID is recorded as /g/121g7f6l[7].
  • astigmatism's Online PWN Encyclopedia ID is recorded as 3871890[8].
  • astigmatism's Encyclopedia of China is recorded as 139739[9].
  • astigmatism's Great Russian Encyclopedia portal ID is recorded as astigmatizm-16a09c[10].

Why It Matters

astigmatism ranks in the top 2% of general entities by monthly Wikipedia readership (121 views/month).[1] astigmatism has Wikipedia articles in 18 language editions, a strong signal of global cultural recognition.[11] astigmatism is known by 7 alternative names across languages and contexts.[12]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] ↑ . wikidata.org.
  2. [3] ↑ . wikidata.org.
  3. [4] ↑ . wikidata.org.
  4. [5] ↑ . wikidata.org.
  5. [6] ↑ . wikidata.org.
  6. [7] ↑ . wikidata.org.
  7. [8] ↑ . wikidata.org.
  8. [9] ↑ . wikidata.org.
  9. [10] ↑ . wikidata.org.

Aggregate / graph-position facts

  1. [1] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [11] ↑ . Wikidata sitelinks. wikidata.org.
  3. [12] ↑ . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). astigmatism. Retrieved April 10, 2026, from https://4ort.xyz/entity/astigmatism-q2423400
MLA “astigmatism.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Apr. 2026, https://4ort.xyz/entity/astigmatism-q2423400.
BibTeX @misc{4ortxyz_astigmatism-q2423400_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{astigmatism}}, year = {2026}, url = {https://4ort.xyz/entity/astigmatism-q2423400}, note = {Accessed: 2026-04-10}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): astigmatism — https://4ort.xyz/entity/astigmatism-q2423400 (retrieved 2026-04-10)

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