Blurred vision is a loss of visual acuity and causes objects to appear blurred without focus. Blurred vision may affect both eyes. However, some people experience blurred vision in only one eye. Continuing blurred vision can be a sign of a serious health problem, and you should see a doctor immediately when this condition persists. The primary causes of blurred vision are eye diseases such as myopia, hyperopia, and astigmatism or presbyopia. It may also be a symptom of more serious problems, including blurred vision, a potentially eye-threatening disease, or a neurological disorder.
If objects are not seen clearly or appear hazy, they are often mixed with blurred vision. Hazy vision is often a symptom of certain vision states, such as cataracts. However, both blurred and hazy vision may be signs of a serious eye problem.
It may be associated with myopia, strabismus, eye fatigue and headaches, which is a symptom of blurred vision in either eye or both eyes. Myopia is one of the most common ocular diseases and causes blurred objects at a distance.
Blurred vision from hypermetropia causes the distant objects to be seen clearly, but cannot properly focus on close objects or lead to unexpected eyestrain. In cases of severe hyperopia, even distant objects may appear blurry.
Blurred vision at all distances is usually a symptom of astigmatism. Astigmatism, a kind of break error, is usually caused by an irregularly shaped cornea. Blurred vision occurs because with astigmatism, objects cannot reach a single focal point on the retina to provide clear vision, regardless of how far from the eye of the sighted person.
If you are over 40 and are reading a newspaper or other small article, it may be blurred, which may be due to the onset of presbyopia. Symptoms of presbyopia are similar to hyperopia, blurred vision, eye fatigue during reading. Presbyopia is the loss of the ability to focus on close objects due to the hardening of the lens in the eye rather than loss of vision.
Dry eye syndrome may affect your eyes in a variety of ways, including a blurred vision. Artificial tears (lubricating eye drops) may be helpful, while more extreme dry eyes may require treatment with prescription medications to ensure that the eye remains slippery and healthy.