trustme.bro/r/…
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trust me, bro:
here is the receipt.
the claim
Circles and lines seen when squinting at light are caused by optical phenomena in the eye
the verdict
COMMON KNOWLEDGE
no citation needed for this one
refutedsupported
the weight of evidence
no sources on either side

The visual phenomenon of seeing circles, diffraction lines, or light patterns when squinting at a bright light source is a well-known consequence of light interacting with the tear film, eyelashes, and eyelids of the human eye, and requires no citation.

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The analysis

The claim describes a familiar, everyday physiological optical observation regarding how the eye's structures and tear film diffract light when squinting. Under the instructions, trivially true observations of everyday optics are classified as common knowledge, requiring no formal citations from the retrieved literature.

Everything we examined (12)
We also searched for evidence AGAINST this claim, not only for it.
  1. Discovery and clinical translation of novel glaucoma biomarkers.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  2. Ultrahigh-resolution OCT imaging of the human cornea.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  3. Versatile optical coherence tomography for imaging the human eye.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  4. Evaluation of objective visual quality in dry eye disease and corneal nerve changes.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  5. Non-invasive <i>in vivo</i> imaging of human corneal microstructures with optical coherence microscopy.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  6. Subjective and objective changes in visual quality after implantable collamer lens implantation for myopia.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  7. Long-range frequency-domain optical delay line based on a spinning tilted mirror for low-cost ocular biometry.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  8. Optical Coherence Tomography Angiography in the Thirteen-Lined Ground Squirrel.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  9. Roadmap on advances in visual and physiological optics.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  10. Wavelength dependence of fine spatial resolution in human vision.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  11. Basic Optics Underlying Current Intraocular Lenses.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  12. Polychromatic Virtual Retinal Imaging of Two Extended-Depth-of-Focus Intraocular Lenses.peer-reviewedno side takennot shown: read and judged not to bear on this claim
The paper trail · every fact has a biography
first checked05 Aug 2026
judged → COMMON KNOWLEDGE · 9505 Aug 2026
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