Clear Tears, Coloured Discharge, and Why the Difference Matters
Tears are the eye's normal cleaning system, so a little clear overflow, especially after sleep, dust, or a breezy garden visit, does not by itself signal disease. Flat-faced breeds may tear more because of how their tear drainage is shaped, and their owners learn that baseline well. The change to act on is in colour, amount, and company: discharge that becomes yellow or green suggests the eye needs veterinary assessment, as does redness of the white of the eye, a half-closed or squinting eye, cloudiness, swelling of the lids, or pawing and rubbing at the face.
One eye versus both is useful evidence. Both eyes running alongside sneezing, nasal discharge, and reduced appetite fits the familiar flu-type picture many cats experience, particularly younger cats and those in multi-cat homes. One eye suddenly watering and squinting after outdoor play raises different possibilities, such as a grass seed, dust, a scratch, or a small injury from a housemate's claw. Report which pattern you see and when it started, because that steers the examination before the vet even picks up an instrument.
Pain Signs That Shorten the Wait
Cats tolerate eye discomfort quietly, so read the subtle signals. Squinting or holding one eye shut, flinching from bright light, a third eyelid showing across the eye, rubbing the face on furniture, new head-shyness when you reach toward him, or a personality change such as hiding and irritability can all indicate pain rather than simple watering. Any of those, or visible cloudiness, a blue-grey haze, blood, or something visibly lodged in the eye, warrants a prompt call the same day rather than home observation.
Do not attempt to prise the eye open for a thorough look if he resists, and do not press on the eye. A brief glance in good light, noting colour of discharge and whether the eye looks cloudy, is enough evidence to bring. If he wears a collar that rubs, or if another pet's rough play preceded the signs, mention it. Protecting the eye from further rubbing, sometimes with a cone if you already have a well-fitting one, matters more than diagnosing it yourself on the sofa.
Gentle Home Care While You Wait
Wipe discharge away with a soft cloth or cotton pad dampened with clean warm water, using a fresh pad for each eye so nothing transfers between them. Work gently from the inner corner outward, and stop if he becomes distressed — a clean face helps comfort and lets you judge whether discharge is improving, but it is not a cure for an underlying cause. Keep a note of how often you are wiping; needing to clean hourly is different information from a single morning wipe.
Resist using leftover drops from a previous episode or drops made for people. Eye medicines differ by cause, a product suited to one problem can worsen another, and an old opened bottle may no longer be clean. Likewise, do not borrow treatment across pets in the house even when signs look similar. If sneezing and appetite loss accompany the eyes, keep food warmed and accessible, because a cat who cannot smell well eats less, and appetite loss has its own deadline for veterinary attention.
Patterns Across Episodes Help the Vet
Some cats tear up repeatedly — every spring, during every sneezing bout, or in one eye that has drained poorly since kittenhood. A log noting dates, which eye, discharge type, accompanying sneezing, and what the vet found each time turns those repeats into a diagnosis aid. Vaccination history belongs in the same view, because flu-related protection status informs how the vet interprets recurrent signs. In KinsLe, the Pet Passport holds his eye episodes and vaccine history together for comparison.