Our standards
Editorial policy
This policy explains how the AstigmatismTest.com Editorial Team researches, checks, labels, updates, and corrects educational vision content.
Last updated: October 28, 2026
Source selection
We prefer sources that let readers verify a claim directly: government and public health agencies, professional ophthalmology and optometry organizations, peer-reviewed research, clinical guidance, and documentation from the organization responsible for a product or program. We avoid relying on anonymous articles, unsourced summaries, or a single promotional claim when stronger evidence is available.
Sources should support the specific statement beside them. Publication date, study population, limitations, conflicts of interest, and whether evidence applies to an at-home screen are considered before a claim is included.
Fact-checking and authorship
The AstigmatismTest.com Editorial Team checks factual claims against the cited source, edits for plain language, and reviews warnings and limitations before publication. The team byline describes editorial responsibility; it does not imply that the writer is a doctor or other licensed clinician.
At present, we do not claim routine review by a licensed optometrist or ophthalmologist. If a page receives professional review in the future, it will identify the reviewer, relevant credentials, review date, and scope of review so readers can verify the claim.
Use of AI-assisted tools
AI-assisted tools may help organize notes, suggest an outline, identify unclear wording, or support an early draft. We do not treat AI output as a source. A person is responsible for checking claims against the underlying references, removing unsupported statements, preserving uncertainty, and approving the final page. We do not invent authors, reviewers, firsthand experience, or credentials.
Illustrative photography may also be AI-generated. These images are used to show a general setting or activity; they do not depict our editorial team, a real patient, a clinical relationship, or a documented medical event. We avoid images that display invented test results, credentials, product endorsements, or diagnostic claims.
Updates and corrections
Article pages distinguish the original publication date from a later update when a substantive change has been made. We do not change dates merely to make content appear new. Minor spelling, formatting, or metadata edits do not justify a new editorial update date.
When we confirm a material error, we correct the text and update supporting sources or context. Reports can be sent through our contact page. Please include the URL, disputed passage, and a reliable source when possible.
Medical boundaries and urgent symptoms
Our content and screening tools are for general education. They cannot diagnose a condition, determine a prescription, replace a dilated or comprehensive eye exam, or provide a personalized treatment recommendation. A result that looks normal cannot rule out eye disease.
Sudden vision loss, a curtain-like shadow, new flashes or a shower of floaters, severe eye pain, eye injury, or halos with a red eye and nausea may require urgent care. Readers should contact an appropriate local medical service rather than wait for a reply from this site.
Commercial independence
Advertising may fund site operations, but advertisers do not select topics, edit articles, approve conclusions, or receive favorable treatment in our guides. Advertising and sponsored material must be visually distinguishable from editorial content. Any material commercial relationship relevant to a recommendation should be disclosed.
Report a concern
We welcome corrections and questions about these standards. We cannot provide a diagnosis or interpret an individual test result by email.