These information sheets are provided for your interest. They should not replace veterinary advice from your veterinary surgeon.

Whilst every effort is taken to ensure the accuracy and completeness of the information provided at the time of writing, your specific circumstances must be discussed before advice can be given.

New Forest Eye

New Forest Eye is caused by a bacterium called Moraxella bovis, and is largely spread by flies in the summer months. Also known as Infectious Bovine Keratoconjunctivitis, or Pinkeye.

Clinical signs

  • increased tear production, often leading to overspilling and tear-staining of face
  • cloudy, then pink discolouration of the eye
  • corneal ulceration
  • cow unwilling to open eye or to be examined due to pain. Pain is more extreme in direct sunlight.


Topical antibiotic preparations are commonly used and can have a good effect. Moraxella are susceptible to nearly all antibiotic preparations, and a long-acting systemic injection can also have a good effect.