Yes, it is quite normal for most of people's eyes get red after crying. While crying, you are in high spirits usually, which may effect the circulation of the blood, and increase the blood flow to the eyes. And then, give rise to the ocular hyperemia. At the same time, eyes muscles become tighter and retina become thiner. Moreover, many people are used to rubbing eyes as crying, and repeated friction may also render blood running faster through the veins, which easily cause eyes become red. Thus no matter weeping silently or moaning a wailing can both stem from eyes getting red. After crying, it's better for you to use a warm compress to relieve the symptom.