Source checked 12 November 2026. PawLine editorial team. Not professionally reviewed.
Educational information, not veterinary advice or a home vision test. Do not darken a room, add obstacles or shine light into the eyes. If sight changes or you are worried, seek veterinary advice as soon as possible; do not wait for notes or an app reply.
What the site explains
Available Light explains the difference between low light and no light, the role of reflected eyeshine and the meaning of crepuscular. It helps arrange existing observations. It cannot measure a room’s illumination, simulate feline sight or examine an eye.
Source boundaries
The editorial team fetched Cats Protection and Blue Cross on 12 November 2026. The guide uses only the relevant eyesight, twilight and care material. It avoids numerical vision ratios, color demonstrations and diagnosis or treatment detail. Neither organization reviewed or endorsed this site.
Review and translation status
No veterinarian or veterinary ophthalmologist has individually reviewed the site. Translations are machine-assisted and not professionally reviewed; English is the reference. The original light-strip art is illustrative, not a retinal image, calibrated brightness scale or room safety map.
Publisher and privacy
PawLine publishes the site. Official product art is labeled honestly. Temporary fields are not saved, sent or included in analytics or store links. Corrections: support@pawline.inc, not an emergency service. Free to download; see the store listing for current offers, pricing and trial terms. PawLine app, patent pending.
Sources and limits
Cats Protection: Can cats see in the dark?