Can rat poison cause blindness in horses?

Yes, rat poison can cause blindness in horses, particularly if it contains anticoagulants like bromadiolone or brodifacoum. These substances can lead to internal bleeding, which may affect the eyes or cause neurological issues that result in vision impairment. Additionally, other toxic components in rat poisons can have detrimental effects on a horse's overall health, potentially leading to blindness as a secondary effect. Immediate veterinary attention is crucial if poisoning is suspected.