What Are the RSVP Signs of Corneal Transplant Rejection?

After a corneal transplant, your new cornea (the clear front surface of your eye) is living tissue from a donor. While your body’s immune system naturally protects you by fighting off foreign invaders, it can sometimes mistake the new donor cornea for a threat ^[1][2]. This process is known as graft rejection.

It is important to know that graft rejection can occur at any time—weeks, months, or even decades after your surgery. To help you catch a rejection episode early, doctors use the acronym RSVP. If you experience Redness, Sensitivity to light, Vision decrease, or Pain, you must contact your eye doctor immediately. This is an urgent medical situation, though it is highly treatable if caught early ^[3][4].

What Does RSVP Stand For?

The RSVP acronym is a simple tool to help you monitor your eye for the key clinical signs of an active inflammatory process. These signs can indicate graft rejection, but they can also be signs of an eye infection or a scratched cornea ^[5][6]. Regardless of the cause, these symptoms always require a prompt evaluation by an eye doctor.

• Redness ®: While mild redness is normal for the first few weeks after surgery, any new or worsening redness in the white part of your eye after that initial recovery period can be an early warning sign ^[3][4].
• Sensitivity to light (S): Also known as photophobia, this occurs when inflammation inside the eye makes bright lights uncomfortable or even painful to look at ^[3][4].
• Vision decrease (V): If your vision suddenly becomes blurrier, cloudy, or noticeably worse than it was the day before, it may indicate corneal edema (swelling of the clear front part of the eye). This happens when the new graft is struggling to function properly ^[3][4].
• Pain (P): Any new aching, throbbing, or sharp pain in or around the eye can indicate severe inflammation or an increase in eye pressure, and it should never be ignored ^[3][4].

Note: In some newer, partial-thickness transplants like DMEK or DSAEK, symptoms can sometimes be subtle or even absent, making it crucial to attend all routine clinical follow-ups even if you feel fine ^[4][7].

Why Immediate Action is Critical

Corneal graft rejection is an urgent medical situation, but fortunately, prompt medical intervention is highly effective at reversing it ^[5][8].

The standard treatment for an active rejection episode is the immediate use of intensive topical corticosteroids (prescription steroid eye drops) ^[8][9]. These drops calm the immune system, reduce inflammation, and help preserve the health and clarity of the new cornea ^[8][10].

When a rejection episode begins, inflammatory cells flood into the transplant area and can harm the endothelial cells—the delicate layer of cells that pump fluid out of the cornea to keep it clear ^[1][11]. If you wait too long to seek treatment, this process can cause irreversible damage to these essential cells. This can result in permanent graft failure and the need for a second transplant ^[12][13].

What to Do If You Notice an RSVP Sign

If you experience any single symptom of RSVP—even if it seems minor or you are unsure—do not wait to see if it improves on its own.

• During Office Hours: Call your ophthalmologist or eye clinic immediately. Be direct and mention exactly this: “I am a corneal transplant patient and I am experiencing an RSVP sign.”
• After Hours, Weekends, or Holidays: Call your clinic’s emergency line to page the on-call ophthalmologist. If they cannot be reached, go to a specialized eye emergency center (eye casualty) if one is available in your area. Try to avoid general hospital emergency rooms if possible, as they often lack the specialized microscopes (slit lamps) and specific eye expertise needed to diagnose a graft rejection accurately.
• Do Not Self-Treat: Do not attempt to treat the issue with over-the-counter redness-relief drops, and never change your prescribed drop schedule without speaking to your doctor first.