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Blurred eye is a loss of visual acuity and the inability to see objects in detail. Blurred eyes are the most common visual complaint. However, you should still be aware of it because this can also be a symptom of other, more serious diseases
Blurred eyes can be caused by a variety of things and can occur in one or both eyes. The most common causes of blurred vision are refractive errors of the eye, such as farsightedness, farsightedness, presbyopia, and astigmatism.
Dry eyes are also another factor that causes blurred vision. This is because, the eye is not able to produce tears as it should so it cannot maintain and lubricate the surface of the eye. If this condition is not treated immediately, it will cause blurred vision.
Various Causes of Blurred Eyes
In order for you to understand more about the causes of blurry eyes, here are some examples:
1. Refractive eye disorder
As previously mentioned, refractive eye disorders can cause blurred vision. This condition makes the sufferer need to use glasses in order to see clearly. Refractive eye disorders occur due to changes in the shape of the eyeball, the shape of the cornea, or there is interference with the eye lens.
Cataract is a condition where the lens of the eye becomes blurry and blocks light from reaching the retina, resulting in blurred vision. This condition can occur due to aging or injury to the eye.
3. Macular degeneration
Macular degeneration is a visual disorder that is commonly experienced by the elderly. This condition can cause the sufferer to lose vision in the middle visual field due to damage to the macula, the area around the retina of the eye that functions to increase visual acuity.
Glaucoma is an eye disease caused by excessive pressure on the eyeball. This condition causes the optic nerve to become permanently damaged and causes blurred vision.
5. Eye infection
Usually eye infections occur due to viruses, bacteria, or fungi that enter the eye. This infection can occur due to eye injury or contracted from other people. The most common example of an eye infection is conjunctivitis.
This condition is caused by a viral or bacterial infection. Although usually not serious, conjunctivitis is contagious and can sometimes cause blurred vision.
6. Use of contact lenses
Dirty and damaged contact lenses can interfere with vision. Improper wearing and care of contact lenses can cause sores and infections of the cornea of the eye (keratitis).
If you have type 1 or type 2 diabetes, you are at risk for diabetic retinopathy. In this condition, there is damage to the blood vessels and nerves in the retina of the eye, resulting in blurred vision.
8. High blood pressure
Having high blood pressure not only causes a stroke, but also causes a mini stroke to the eye called venous occlusion. People who experience venous occlusion usually experience blurred vision and only affects one eye.
9. Consumption of certain drugs
Blurred eyes can also be caused by other factors, such as drugs or supplements, either prescription or over-the-counter. Some medicines that may make your vision blurry are:
- Certain anticholinergic drugs
- Several types of antihypertensive drugs
- birth control pills
- Antidepressant drugs
- Medicine for heart disease
Blurred eyes are usually not a serious problem if the complaints come and go.
However, if your blurred vision is accompanied by other symptoms such as sensitivity to light (photophobia), spots appear when looking at objects (floaters), eye pain, double vision, to bleeding in the eye, it is better to consult an ophthalmologist.
Because this can be a sign of a serious eye disorder or serious illness.
Diagnosing the Cause of Blurred Eyes
Complaints of blurred eyes are a medical problem that needs to be examined and treated by an ophthalmologist. To diagnose, the doctor will trace your medical history and complaints of blurry eyes that you are experiencing to find out how severe the symptoms are and the contributing factors.
From here, the doctor will perform several physical exams on your eyes, including testing your visual acuity. Common eye tests include:
- Eyeball pressure check, or tonometry test
- Slit lamp test
In addition to eye tests, your doctor may also order blood tests to find out if you have bacteria in your blood or an infection in your body. After knowing the cause, the doctor will treat blurry eyes according to the diagnosis of the underlying disease.
How to Prevent Blurred Eyes
Although in certain cases the cause of blurred eyes cannot be prevented, a he althy lifestyle can reduce the risk of this condition. Apply a he althy lifestyle by:
- Quit smoking.
- Always wear sunglasses with anti-UV lenses when going out to protect your eyes.
- Consuming foods that contain he althy nutrition. Choose dark green leafy vegetables, such as spinach and kale. In addition, also consume foods that contain omega-3, such as tuna and tuna.
- Wash your hands before putting on or removing contact lenses.
- Get regular eye exams, especially if there is a family history of eye disease.
- Wear protective glasses when operating heavy equipment or doing certain activities that are at risk of injuring the eyes
Whatever the cause, complaints of blurred vision are conditions that need to be examined and treated by an ophthalmologist. For that, consult an ophthalmologist if your blurred vision is accompanied by other symptoms. The goal is that the blurry eye condition you experience does not get worse, and also to prevent the risk of permanent eye disorders.