Blisters/cysts and blood in eye, why?

both eyes or one?: If both eyes spontaneously develop this problem it could suggest an underlying and serious systemic condition. Some viruses are known to cause a hemorrhagic conjunctivitis also. Blisters suggest an immunologic reaction as can be seen in steven's johnson syndrome. I would recommend seeing a doctor immediately!

See Ophthalmologist : Blisters and cysts as well as blood are not normal. See your ophthalmologist.