I may have popped a blood vessel in my eye while pooping?

Hemorrhage in eye: Sometimes a vessel in the conjunctival lining of the eye over the white sclera, will seep a drop of blood which spreads over a broad area, looking very red. Common stresses that do this are straining at the toilet, coughing, sneezing and various athletic maneuvers. If the vision is unaffected and there is no pain, you can usually wait this out. But see an ophthalmologist if you have worries.