Sudden blurred vision or “myopia” is a common vision problem that can appear suddenly even if you’ve been seeing well for years. Eye conditions and diseases: If you frequently have sudden blurred vision in either one eye or both, it is possible that you’ve developed a blind spot in the middle layer of your retinal cortex or central vision zone.

Sudden blurred vision can also be a symptom of optic nerve disease, erythema, or hypermetropia (overgrowth of blood vessels in the eye) or as a side effect of certain drugs or alcohol use. In rare cases, a sudden blurred vision may be related to a tumor, aneurysm, or stroke.

Sudden Blurry Vision

Some people develop sudden blurry vision without having eye disease or injury. Occasionally, a sudden blurred vision is a side effect of some medicines such as aspirin, penicillin or antihistamines.

Some drugs, including nitrate preparations and chlorpromazine, cause or increase the amount of light that reaches the retina from the eye. If you experience sudden blurred vision or if you wear contact lenses, you should see an ophthalmologist right away.

If you continue to wear contact lenses after experiencing blurred vision, you may have a serious eye problem. If the condition continues, you may need to remove and replace your contact lenses.

A sudden blurred vision or a change in eye color (especially in one or both eyes) can indicate that a large portion of the retina has been damaged.

Some common causes of blurry vision include

  • Myopia
  • Hypermetropia (farsightedness)
  • Astigmatism
  • Presbyopia

Myopia, also known as nearsightedness, occurs when the eye takes longer to focus an image than usual. This can be caused by changes in the bone structure or the eye muscle.

Another possible cause is the buildup of stress and tension in the muscles of the eyes. Astigmatism is defined as a vision problem that involves the irregular shape of the cornea, which can cause blurriness or lines and can make the eye appear smaller or bigger than normal.

Myopia and hypermetropia are treatable if they are detected early

These conditions typically cause double vision, where an individual sees one image as a double image, usually with the left eye. Presbyopia is a condition where an older person can see clearly, but the aging eye cannot focus on close objects.

Sudden Blurry Vision

Sudden blurred vision often occurs in people who are developing age-related eye disorders, such as cataracts, macular degeneration, and glaucoma.

There are several ways to treat the underlying cause of blurred vision

One common treatment for this vision disorder is wearing contacts or glasses. However, there are many people who do not wear contact lenses or eyeglasses but are able to see well because of prisms, floating elements, and other optical devices. Other options that some optometrists may recommend are

  • LASIK eye surgery
  • PRK or blade-free LASIK eye surgery
  • Laser eye surgery

Sudden blurred vision can also result from serious eye strain

This is most commonly experienced in athletes. When an athlete over trains, there is a decrease in blood supply to the eyes, which results in decreased clarity.

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If the athlete does not rest enough between training sessions, this strain could also cause double vision. Eye strain that is caused by computer and video technology in the work environment is also increasing.

People who spend a lot of time working at a computer screen without switching to another object during use will likely experience the same problem.

Some people suffer from dry eyes or conjunctivitis

Dry eyes can be easily remedied with eye drops. Most eye drops used to treat dry eyes focus on preventing damage to the conjunctiva as well as improving moisture levels.

If a person is experiencing sudden blurred vision, it is easy to treat with an eye drop. These types of eye drops can be purchased at any over-the-counter pharmacy or drug store. As with many vision ailments, prevention is the best cure.

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