Red eye entails other people seeing redness in the eye. It does not mean the person’s vision is turning red. Red eye without pain has many causes includind allergies that are not too serious. It can often be prevented or eased with home care. Other words for red eye, include “pink eye ” and “bloodshot eyes .” In most cases, the is because of conjunctivitis. Conjunctivitis entails rednes of the surface of the eye, and it has several different causes.
If there is pain in the eye, this could be a serious problem. If the eye is more itchy, or there is a feeling of dry scratchiness, it is likely to be less serious. An eye with a sharp, aching, or pulsating ache, or a pain that gets worse in response to lighting, needs to be seen by a doctor right away.
Red eye is often a result of allergies may be helped by over the counter drugs. Some tablet and eye drop for allergies are available over the counter without a doctor’s prescription.
Aside from conjunctivitis, a number of other common conditions may cause red eyes. The below examples do not cause a red eye in the same way as conjunctivitis. The surface of the eye is not always reddened, but the wider eye area may appear red. read more here . . . medicalnewstoday.com