What does a corneal abrasion look like with fluorescein?
Abigail Rogers
Updated on February 26, 2026
After fluorescein staining of the cornea, an abrasion will appear yellow under normal light and green in cobalt blue light. Physicians should carefully examine for foreign bodies and remove them, if present. The goals of treatment include pain control, prevention of infection, and healing.
What do you use to diagnose a corneal abrasion?
To diagnose a corneal abrasion and examine your eye, your healthcare provider will give you eye drops to relax your eye muscles and widen your pupil. They’ll also give you fluorescein drops to highlight imperfections in the surface of your cornea. You may also receive a corneal anesthetic to temporarily ease pain.
Why does fluorescein stain cornea?
Historically, sodium fluorescein staining has been thought to be a result of one of three mechanisms2: pooling in areas of shed cells, ingress around cells due to loss of tight junctions, or in dead or desquamating cells.
How do you evaluate a corneal abrasion?
On exam, corneal abrasions can be associated with redness, light sensitivity, excessive lacrimation, decreased visual acuity. Fluorescein staining is the most helpful clinical tool to assess corneal abrasion. The dye will get caught in the corneal abrasion and fluoresce under cobalt blue light.
Should I go to the ER for a corneal abrasion?
If there is something stuck on the surface of your eye and rinsing doesn’t get rid of it, don’t try to remove it yourself. Instead, visit your eye doctor, emergency room, or an urgent care facility like Physicians Immediate Care to have the object removed safely by a physician.
Is a corneal abrasion an emergency?
Seek emergency care if: There is pain, change in vision, or increased sensitivity to light after a scratch or trauma to the eyeball.
What are the side effects of fluorescein?
Side Effects
- Bluish color.
- cold, clammy skin.
- difficulty breathing.
- difficulty swallowing.
- fast heartbeat.
- hives, itching, or skin rash.
- lightheadedness.
- noisy breathing.
How long does fluorescein stay in your system?
You may have yellow eyes and skin after the test. Your urine may be dark yellow or orange for 1 to 2 days as your body gets rid of the fluorescein dye.
When should you see an ophthalmologist for a corneal abrasion?
You should make an appointment with an optometrist if you notice any combination of the following symptoms: A gritty feeling that persists after rinsing the affected eye. Constant pain or an ache similar to having an aggravating object in the eye. Fuzzy vision.
What is the best treatment for corneal abrasion?
If you have a corneal abrasion, your doctor will prescribe an antibiotic in either eye drops or an eye ointment to prevent an infection from developing in the injured area.
How to determine a corneal abrasion?
Corneal Abrasion Diagnosis. To accurately diagnose a corneal abrasion, your ophthalmologist may perform a fluorescein eye stain. This is a test that uses orange dye (fluorescein) and a blue light to detect damage to the cornea.
What are the signs of a corneal abrasion?
Signs and symptoms of corneal abrasion include: Pain. A gritty feeling in the eye. Tearing. Redness. Sensitivity to the light. Headache.
What are potential causes of corneal abrasion?
Causes of a Corneal Abrasion. A corneal abrasion may also be the result of a bacterial infection or a contact lens that fits improperly.