What's your diagnosis answer:
C: Acute Feline Bullous Keratopathy
This is an uncommon, but progressive corneal disease. Affected cats present with corneal oedema which can range from a few mm in diameter, to affecting the entire cornea. The aetiology is unknown, but recognised risk factors include topical or systemic corticosteroid use and cyclosporine therapy. Medical management is usually unsuccessful, but a third-eyelid flap, in place for 2 - 4 weeks will result in successful resolution in almost 90% of cases.