Compare the two eyes before wiping
Look in even daylight. Is one eye different? Note clear tearing, stringy mucus, yellow or green material, blood, crusting, redness, cloudiness or swelling. Watch whether the dog blinks repeatedly, rubs the face, avoids light or keeps the eyelids partly closed. Photograph the eye before cleaning if that can be done without restraint.
What discharge color can tell you
Clear tears can follow irritation, poor drainage or pain. Thick mucus may occur when the tear film is abnormal. Yellow or green discharge can accompany inflammation or infection, but appearance alone cannot show whether the surface is scratched, an eyelid is rubbing, a foreign object is present or pressure inside the eye has changed.
- One eye or both
- Exact start time and speed of change
- Discharge color and thickness
- Squinting, rubbing, light avoidance or visible pain
- Cloudiness, swelling, trauma or chemical exposure
- Current eye medication and previous eye disease
Clean only the surrounding fur
If the dog is comfortable, soften crust on the fur with clean lukewarm water or sterile saline and wipe away from the eye with clean gauze. Do not force the eyelids open. Avoid human redness drops, leftover antibiotics, contact lens solutions and products containing medication unless a veterinarian directs their use for this episode.
Eye pain needs a prompt vet visit
Seek prompt or same day advice for squinting, holding the eye closed, a cloudy or blue appearance, marked redness, swelling, unequal pupils, sudden vision trouble, blood, a visible object or any scratch or blow. Chemical exposure requires immediate veterinary or poison guidance on flushing while care is arranged. An eye displaced from the socket is an emergency.
Describe the material coming from the eye, whether one or both eyes are affected, and when it started. Note pain or squinting as well as any change in the eye itself.
For the appointment, bring the timeline and every eye product currently used, including nonprescription wipes. Mention whether discharge is worse after sleep, outdoors, in wind or after grooming. If facial hair touches the eye, photograph that relationship without trimming immediately before the examination. The veterinarian may assess the eye surface, tear production, eyelids, drainage and pressure depending on the presentation. Those tests answer different questions, which is why an online color chart cannot safely select drops. If an eye medication has already been prescribed, ask what to do about a missed dose rather than doubling or stopping it without instructions.