brown pig's eye close-up, veterinary ophthalmology check-up, diagnosis and treatment

brown pig eye closeup treatment anatomy diagnostic veterinary ophthalmology agriculture checkup glaucoma uveitis blepharitis conjunctivitis keratoconjunctivitis cataracts bacteria ulcers health examination staphylococcus streptococcus inspection clinic mammal farm farming medicine husbandry texture natural science services welfare life livestock countryside rural piglet detail macro iris pupil cornea vision sight corneal viruses mycoplasma pasteurella haemophilus actinobacillus escherichia bordetella clostridium leptospira prrsv siv pcv prv ppv fmdv csfv asfv hcv pedv animal