Yes, it may cause red eyes. We know that eyes are the most delicate and soft organs in human body. Eyes are full of capillaries and nerve ends, so they are very sensitive and easy to get red. The red spots in eyes are caused by broken capillaries in eyes. There are so many possibilities which can make the small vessels broken, including any movement or action we do every day, crying, coughing, weight lifting, rubbing eyes, and so on. All of these daily actions we do will increase pressure in eyes resulted in capillaries broken. Stroke occurs when the block supply to brain is interrupted or reduced. Without enough blood with oxygen, the brain cells begin to die. A stroke is a serious medical emergency, which might probably lead to walking, speaking or disability, vision impairment, headache or even death. It is serious problem which requires immediately treatment. It is very easy to get bloodshot in eyes after a stroke, because the high blood pressure would break the delicate vessels in eyes. But bloodshot is very tiny problem which can go off within days without requirement of treatment. Stroke is the most serious problem which need your full attention. Communicate with your doctor to prevent a stroke or more damages from a stroke. Good luck!