How is a corneal or scleral tear diagnosed?

The vet will use fluorescein staining to confirm corneal damage and a slit-lamp or magnifying lens to assess wound depth. Bacterial culture or imaging may be arranged if needed.

If there is minor eye bleeding, is it safe to wait and observe for a few days?

If there is only mild redness and your pet remains alert with a normal appetite, you may monitor closely for up to 24 hours and document with photos. If bleeding increases or the eye stays shut, seek veterinary care immediately.

Can a corneal tear heal on its own?

Superficial minor wounds may heal without infection, but deep lacerations or perforations carry high risk and require veterinary assessment, treatment, or specialist referral.

What should I bring to the vet visit?

Bring a note of when symptoms started, photos or videos taken at home or at the scene, and a list of all current medications or eye drops. Previous examination reports are also helpful.

How much do the tests and treatment usually cost?

Costs vary by clinic and region — ask your vet for an estimate before proceeding.

Disease Guide

Corneal & Scleral Tears in Dogs and Cats: Red Eye, Bleeding & Treatment [2025]

Corneal and scleral tears are ocular emergencies that can cause blindness and require prompt surgical repair — prognosis depends on the size and location of the wound.

Take 1 minute to check the symptoms first

Last updated: 2026/01/05

Pethealthmap Editorial Team

Sources: AAHA, AVMA, National Taiwan University Veterinary Hospital

When to See a Vet

Seek immediate emergency care

•Heavy bleeding from the eye that cannot stop on its own
•Severe ocular perforation or obvious tissue prolapse
•Sudden vision loss or intense, persistent eye pain

Schedule a clinic visit soon (within 24–72 hours)

•Eye is red and swollen but can open temporarily and vision is still acceptable
•Visible blood vessels or blood-tinged discharge in small amounts
•Slightly reduced activity but still willing to eat and drink

01What symptoms indicate something is wrong?

Corneal or scleral tears typically present with obvious ocular abnormalities, including redness, haemorrhage, corneal oedema, and increased discharge, often accompanied by reluctance to open the eye or frequent pawing.

Redness of the eye, visible conjunctival blood vessels, or obvious hyperaemia
Corneal oedema causing blurred vision or a white haze over the eye
Increased ocular discharge, which may be blood-tinged or cloudy
Frequent pawing at the eye, squinting, or reluctance to open the eye
If any of the above signs worsen, seek veterinary assessment promptly

Seek emergency care immediately if you notice the following symptoms:

⚠️ Profuse ocular haemorrhage that does not stop on its own
⚠️ Severe globe perforation or obvious tissue prolapse
⚠️ Sudden vision loss or severe, persistent eye pain

02How to assess the situation at home: what to monitor and when to go to emergency

Documenting and photographing key details at home helps your vet quickly assess the timing and severity of the injury.

Note the exact time and circumstances of the injury or onset of symptoms
Take close-up photos and short videos of the eye daily to document any changes
Note any changes in appetite, water intake, or toileting habits
Monitor energy level, response to light, and willingness to keep the eye open
If symptoms worsen or do not improve, arrange a clinic visit as soon as possible

03How will the vet make a diagnosis? Common diagnostic tests

At the clinic, your vet will perform a dedicated ophthalmic examination and may arrange imaging or culture tests as needed.

A thorough physical examination to assess globe position and eyelid condition

Fluorescein staining to confirm any corneal defects or ulceration

Slit-lamp or magnified examination to evaluate corneal and scleral details

Swab of ocular discharge for bacterial culture and sensitivity testing

X-ray or CT imaging when needed to assess orbital or skull involvement

04How is it treated and managed after diagnosis? Medications, diet, and care guide

Treatment is tailored to the extent of the injury and infection risk, typically involving medication and regular monitoring, with surgery required in severe cases.

Topical medications to control infection and reduce inflammation, with monitoring of treatment response
Surgical repair may be required for severe perforation or deep lacerations
An eye shield or e-collar should be used to prevent pawing and secondary injury
Regular follow-up visits as directed to monitor corneal healing
Bacterial culture will be performed if infection is suspected and treatment adjusted accordingly
Referral to a veterinary ophthalmologist if vision does not recover or the case is complex

05What to prepare before seeing the vet? Key information to help your vet assess quickly

Note the time symptoms began and whether there was any trauma or foreign body exposure

Bring photos and videos of the eye taken at different times

List all current medications, eye drops, or home treatments given

Bring any previous ophthalmic examination records or imaging reports if available

Call ahead to ask whether an appointment with a veterinary ophthalmologist is recommended

This content is for reference only and cannot replace a professional veterinary diagnosis. If your pet shows signs of illness, please seek veterinary care promptly.