Every time you put a fly mask on your horse in the summertime, you're forced to think about his eyes. Corneal ulcers, uveitis, and cataracts are all found in horses, sometimes to the detriment of ...

Horse flies are ¾ to 1-inch in length with black, brownish or grey bodies, clear wings, and yellowish or large green eyes, giving them the common name of "greenheads." They’re active during the ...