You may have notices your horse has puffy eyes (oedema)and clear weeping (epiphora) lately. This is often caused by flies, puts horses at a higher risk of conjunctivitis and corneal ulcers.
It's time to get your fly mask on. And make sure they fit well - a poorly fitting fly mask can cause more problems than it solves.
Check under your fly masks daily for any eye irritations or rub marks.
Put a fly repellant on any parts of the body that aren't covered by a mask or rug. But don't put fly repellent on any sensitive areas like inside eyes, inside nose or genitals.