Blurry vision can affect people of all ages, causing them to view objects as unclear and indistinct. The condition may affect one eye or both, depending on what causes it. Occasionally, those with blurred vision will view everything as blurry. Other times, only a part of their field of vision is affected. Nevertheless, many often dismiss the issue as a minor inconvenience caused by tiredness.
While fatigue can be a factor, blurred vision can also be a symptom of underlying eye conditions. Therefore, it is recommended to consult an eye specialist if blurred vision comes on suddenly. Let us examine the possible causes of blurry vision and the available treatments to help you regain clarity in your eyesight.
What is blurred vision?
Blurred vision is a common visual disturbance where objects appear out of focus, leading to a lack of sharpness and clarity. This can affect your ability to see fine details, whether close up or at a distance. It may occur in one or both eyes and can result from various factors, including refractive errors like nearsightedness or farsightedness, cataracts, eye infections, or even more serious conditions like glaucoma. Blurred vision can impact daily activities, such as reading or driving, and should be evaluated by an eye care professional if persistent.
What are the symptoms of blurred vision?
Difficulty Focusing on Objects
One of the primary symptoms of blurred vision is the inability to see objects clearly, whether they are near or far. This may manifest as fuzzy or distorted outlines.
Sensitivity to Light
Individuals with blurred vision may also experience increased sensitivity to light, leading to discomfort or glare when exposed to bright environments.
Eye Strain and Headaches
Prolonged blurred vision can cause eye strain, often accompanied by headaches, especially when focusing on tasks like reading or using a computer.
Double Vision
In some cases, blurred vision may be associated with double vision, where objects appear duplicated or overlapping, further complicating daily activities.
If you experience any of these symptoms, it’s essential to consult an eye care professional for an accurate diagnosis and appropriate treatment.
What causes blurred vision?
Blurry vision is a common symptom with many potential causes. Often, the triggers are minor, like fatigue or dry eyes. However, blurry vision can sometimes be a symptom of a more significant underlying medical condition.
Cause #1: Refractive errors
Refractive errors, such as astigmatism, farsightedness, and nearsightedness, are one of the primary culprits of blurry vision. These disorders occur when the shape of the eye does not allow light to focus correctly on the retina, resulting in blurred images.
Cause #2: Dry eye syndrome
Dry eye syndrome is a condition in which the eyes do not produce sufficient tears or have poor-quality tears. The syndrome can cause itching, redness, pain, and, you guessed it, blurry vision.
Cause #3: Cataracts
Cataracts are common with age, although they can also develop due to various factors. When cataracts form, the eye lenses become clouded and opaque (challenging to see through), resulting in blurry vision and loss of contrast. Those with the condition may also notice halos around lights when it is dark.
Cause #4: Age-related macular degeneration
Age-related macular degeneration (AMD) is a progressive eye disease affecting the macula, the central part of the retina. It is one of the most common causes of vision loss in older Singaporeans. The condition can affect one or both eyes, leading to blurred or distorted central vision, making it challenging to recognise faces or read.
Cause #5: Diabetic retinopathy
Those with diabetes may experience diabetic retinopathy, which damages the blood vessels in the retina, causing blurry vision and floaters. Diabetic eye care is essential, as this condition can cause blindness if left untreated.
Cause #6: Glaucoma
Glaucoma refers to a group of eye conditions characterised by fluid buildup in the eye, placing increased pressure on the optic nerve. Glaucoma awareness and proper treatment are essential, as the damage to the optic nerve can result in gradual vision loss, including blurry vision, and blindness.
Learn More: An Insight into Common Eye Conditions
How is blurred vision treated?
Treatment for blurry vision depends on what is causing the issue. An eye specialist will conduct various eye tests and a physical examination of your eyes to obtain an accurate diagnosis. With this information, they can prescribe the appropriate treatment to help you regain clarity in your eyes. Treatment may include:
Treatment #1: Corrective glasses or contact lenses
Refractive errors are often corrected with prescription eyeglasses or contact lenses. These products can help redirect incoming light onto the retina properly, providing clear vision.
Treatment #2: Medication
The medication prescribed to treat the condition causing blurry vision will vary depending on your underlying disease. For example, dry eye management often includes the use of artificial tears (eye drops, gels, or ointments that lubricate the eyes). Eye drops may also be recommended for refractive errors like presbyopia.
Treatment #3: Surgery
In cases of cataracts or specific refractive errors, an eye specialist may recommend you undergo a surgical procedure, like LASIK or cataract surgery, to address the underlying issue, thus restoring clear vision and improving your eyesight.
How To Protect Your Vision
Regular Eye Exams
Schedule regular eye exams to catch potential issues early. An eye care professional can detect changes in your vision and provide preventive care.
Healthy Diet
Consume a balanced diet rich in vitamins A, C, E, and omega-3 fatty acids. Foods like leafy greens, fish, and carrots support eye health and can help reduce the risk of vision-related problems.
Wear Protective Eyewear
Protect your eyes from harmful UV rays by wearing sunglasses outdoors. Additionally, use safety goggles when engaging in activities that could cause eye injury.
Limit Screen Time
Prolonged screen time can strain your eyes. Follow the 20-20-20 rule: every 20 minutes, look at something 20 feet away for 20 seconds to reduce eye fatigue.
Avoid Smoking
Smoking increases the risk of eye diseases such as cataracts and macular degeneration. Quitting smoking can significantly improve your long-term eye health.
When Does Blurred Vision Become a Medical Emergency?
Sudden Onset of Blurred Vision
If blurred vision occurs suddenly, it may signal a serious condition like a stroke, retinal detachment, or acute glaucoma. Immediate medical attention is essential.
Accompanied by Severe Headache or Eye Pain
Blurred vision combined with a severe headache or intense eye pain could indicate a medical emergency, such as optic neuritis or a brain aneurysm, and requires urgent evaluation.
Loss of Vision in One Eye
If you experience sudden blurred vision or a complete loss of vision in one eye, it could be a sign of a retinal artery occlusion or another critical condition that demands prompt medical intervention.
Other Neurological Symptoms
If blurred vision is accompanied by symptoms like numbness, weakness, or difficulty speaking, it may indicate a stroke or other neurological emergency. Seek medical care immediately.
In any of these cases, do not wait to see if the symptoms improve — contact a healthcare provider right away.
If you experience persistent blurry vision or any vision problem, please consult our eye specialist at Nova Eye Centre to determine the cause and develop an appropriate treatment plan. With over two decades of clinical experience, Dr Eugene Tay offers a wide range of eye care services. Contact our eye centre to schedule an appointment with us today.
FAQs About Blurred Vision
How do you fix blurred vision?
Fixing blurred vision depends on the cause. Options include wearing corrective lenses, taking prescribed medications, undergoing surgery, or addressing underlying health issues. A professional consultation with Nova Eye Centre is essential to determine the appropriate treatment.
Can stress cause blurred vision?
Yes, stress can cause blurred vision. High stress levels can lead to eye strain, dry eyes, or even trigger migraines, all of which may result in temporary blurred vision.
Can blurry vision go away naturally?
Blurry vision can go away naturally if it’s caused by temporary factors like fatigue, dehydration, or eye strain. However, persistent or severe blurriness requires medical evaluation.
Can lack of sleep cause blurry vision?
Yes, lack of sleep can cause blurry vision. Fatigue can lead to dry eyes, poor focus, and eye strain, which can temporarily blur your vision.
What is the best vitamin for blurred vision?
Vitamin A is crucial for eye health and can help improve blurred vision. Other beneficial nutrients include vitamin C, vitamin E, and omega-3 fatty acids, which support overall eye function.