Dear Tigers777,
I would recommend that you take your dad to an eyeMD to determine the cause of the redness.
Dr. Feldman
Sandy T. Feldman, M.D., M.S.
ClearView Eye and Laser Medical Center
San Diego, California
There seems to be some kind of problem going on. I would need to see the eye in person to see whether it was a hemorrhage or an infection or some type of irritation or inflammation. Make an appointment to see a ophthalmologist in person.
MJK MD