Dizziness and blurred vision

Dizziness and blurred vision

In most cases, blurred vision is probably a sign that you need glasses. But if the blurred vision comes on suddenly, it can be a sign of a serious medical emergency. Any vision change is abnormal. But some causes are more serious than others. Often blurriness is the result of a temporary reaction, and it usually goes away on its own. If blurred vision is accompanied by other symptoms or isn't getting any better, see a doctor right away--especially if the changes are sudden. Below, we look at the multiple causes of blurred vision and various treatment options. Andersen Ross Photography Inc / Getty Images A few vision problems, known as refractive errors, can cause blurred vision. These include: Myopia (nearsightedness) Hyperopia (farsightedness) Astigmatism Presbyopia All of these vision problems make it difficult to see things clearly. Sometimes, people don't even know they have an issue with their vision. Treatment for common vision refractive errors includes prescription glasses or contact lenses. Laser eye surgery can also correct refractive errors. Symptoms of refractive errors include: Hazy, blurry visionGlareSquintingHeadachesSeeing doubleTired eyesDifficult reading (both analog and digital) Blurred vision resulting from something other than a refractive error can't be corrected with glasses or contact lenses. If you have blurred vision, you'll usually notice that your vision isn't as sharp. You may find your sight becomes fuzzy and not as clear. People may think that they have blurred vision, but they really have another vision issue such as: Getting regular eye exams is crucial. An optometrist or ophthalmologist can catch vision problems before they worsen. They can also tell you whether your vision issues result from a problem with your eyes or a non-eye-related condition. If your eyes aren't the problem, they will refer you to your family physician or a specialist. If your blurred vision happens with other bodily symptoms, you should see a doctor right away. The blurriness you're experiencing may be the result of something serious. Some causes of blurred vision are benign, while others require medical intervention. Here are a few potential reasons for blurred vision. Staring at a computer screen all day or scanning documents in low light can tire out your eyes and cause blurred vision. Giving your eyes a rest will return vision to normal. Other symptoms of eye strain include headaches, watery eyes, and facial muscle fatigue. Pink eye (conjunctivitis) occurs when the eye becomes irritated, either by an infection or allergy. Symptoms include swelling, redness, and discharge. The discharge can cause blurry vision. Pink eye may not require prescription medication in most cases, but if the cause is found to be a bacterial infection, a doctor can prescribe antibiotic drops. Diabetes can cause several problems with the eyes, including glaucoma, cataracts, and macular edema. Vision can also change even if you don't have a specific diabetes-related eye disease. Uncontrolled diabetes can lead to blurry vision. Vision usually returns to normal when blood sugar stabilizes. Still, it's essential to treat the root cause to prevent further complications. Hyphema is when blood collects in front of the eye. The pooled blood can obstruct vision and cause blurriness. It's typically the result of a traumatic injury but can also happen due to blood clotting disorders or cancer. Other symptoms include light sensitivity and eye pain. Commonly, treatment involves resting and protecting the eye until it's healed. When the optic nerve swells or is otherwise damaged, it can cause blurred vision. Symptoms of optic neuritis include dim vision, faded color vision, and pain that is usually felt upon eye movement. In some people, the swelling goes away on its own. Treatment for some cases may involve corticosteroids. Uveitis happens when the middle layer of the eye becomes irritated. Iritis is also a term sometimes used in conjunction with uveitis and is an inflammation of the iris (the colored part of your eye). It can cause blurred vision and tissue damage that ultimately leads to loss of sight. Other symptoms include redness of the eye, light sensitivity, and floaters. Medical eye drops can help treat the inflammation. A detached retina is serious and requires immediate medical attention. When the retina detaches from the eye, vision becomes blurred. People may experience symptoms before the retina detaches, including seeing floaters or flashing lights, peripheral shadows, and other visual obstructions. Treatment for a retinal detachment involves surgery. One of the possible symptoms of a stroke is blurred vision. People may also have trouble focusing. Other stroke symptoms include facial changes, speech problems, leg weakness, balance issues, and dizziness. A stroke requires emergency treatment. If you suspect that you or someone else is having a stroke, call 911 or go to the nearest emergency room. People with macular degeneration have blurred vision at the center of their sight, but their peripheral vision remains clear. This is a common cause of vision loss in older adults. Depending on the type of macular degeneration, there may be treatments available. Some drugs can help slow the progression of the condition. Glaucoma is a condition that damages the optic nerve. Of the two types of glaucoma, angle-closure glaucoma can cause acute or immediate blurry vision. It is also known as narrow-angle glaucoma. An acute attack can trigger sudden, intense pressure buildup, which requires immediate medical attention. If left untreated, glaucoma can cause permanent blindness. Other symptoms of an acute attack include sudden blurriness, nausea, vomiting, severe pain, and headache. Once glaucoma damage occurs, it can't be reversed. Control of disease progression involves medical eye drops, laser surgery, or a surgery called a trabeculectomy. There are many reasons you may experience blurred vision. Allergies and irritation can cause temporary blurriness. Serious conditions like glaucoma and macular degeneration can also cause blurred vision and require prompt medical attention. Unfortunately, many people don't always find out about their vision issues until it's too late and the damage is permanent. It's why getting a regular eye exam is so important. In some cases, treatments can slow disease progression as long as the problem is caught early. HomeConditionsEye Conditions A-Z By Aimee Rodrigues; reviewed by Gary Heiting, OD Blurry vision is the loss of sharpness of eyesight, making objects appear out of focus and hazy.The primary causes of blurred vision are refractive errors -- nearsightedness, long sightedness and astigmatism -- and presbyopia. But blurry vision also can be a symptom of more serious problems, including a potentially sight-threatening eye disease or neurological disorder.Blurred vision can affect both eyes, but some people experience blurry vision in one eye only.Cloudy vision, in which objects are obscured and appear "milky," is very similar to blurry vision. Cloudy vision usually is a symptom of specific conditions such as cataracts. Blurry vision and cloudy vision both can be symptoms of a serious eye problem, especially if they occur suddenly.To determine whether you have blurry vision and what is causing it, see an optician for a comprehensive eye exam.Blurry vision: Causes and treatmentMyopia: Symptoms of myopia (short-sightedness) include squinting, eye strain, headaches and blurry vision in one or both eyes. Myopia is the most common refractive error and causes objects in the distance to appear blurred. Glasses, contact lenses and refractive surgery such as LASIK and PRK are the most common ways to correct near-sightedness.Hyperopia: If you have hyperopia (long-sightedness), distant objects may remain clear but your eyes can't focus properly on close-up objects -- or doing so causes unusual eye strain and fatigue. In cases of severe long-sightedness, even distant objects may appear blurred.Like myopia, hyperopia can be corrected with glasses, contact lenses, or refractive eye surgery.Astigmatism: Blurred vision at all distances often is a symptom of astigmatism. A type of refractive error, astigmatism usually is caused by an irregularly shaped cornea.With astigmatism, light rays fail to come to a single focus point on the retina to produce clear vision, regardless of how far away the viewed object is from your eyes. Astigmatism, like near-sightedness and long-sightedness, can be corrected with glasses, contact lenses, or refractive surgery.Presbyopia: If you're over age 40 and are starting to notice blurry vision up close -- when reading a text message, a restaurant menu, food label, or other small print, for example -- chances are this is due to the onset of presbyopia, a normal age-related vision problem.While the symptoms of presbyopia are the same as those caused by hyperopia (blurry near vision; eye strain when reading), presbyopia is an age-related loss of ability to focus on near objects due to hardening of the lens inside the mon treatments for presbyopia include progressive lenses, multifocal contact lenses, bifocals and reading glasses. There also are presbyopia surgery options -- including corneal inlays, presbyLASIK and conductive keratoplasty.For all eyeglasses to correct refractive errors and presbyopia, clarity and comfort can be enhanced with antireflective coating and photochromic lenses. Ask your optician for details.At top is a clear view of a Jack Russell terrier, while the blurry photo in the middle shows how the dog might appear to a very shortsighted person. At bottom, the view is both blurred and clouded, as it might appear to someone with cataracts.Chronic dry eyes: Dry eye syndrome can affect your eyes in numerous ways, including causing variable blurry vision. While artificial tears (lubricating eye drops) can help, more advanced cases of dry eye may require a prescription medication or punctal plugs to keep your eyes comfortable, healthy and seeing well.Pregnancy: Blurry vision is common during pregnancy and sometimes is accompanied by double vision (diplopia). Hormonal changes can alter the shape and thickness of your cornea, causing your vision to blur. Dry eyes also are common in pregnant women and can cause blurred vision.You should always report any vision disturbances during pregnancy to your optician. While blurry vision is not always serious, in some cases it can be an indicator of gestational diabetes or high blood pressure.Ocular migraines or migraine headaches: While generally harmless and temporary, blurred vision, flickering light, halos and zigzag patterns are all common symptoms prior to the start of an ocular migraine or migraine headache.Eye floaters: Vision can be blurred by temporary spots or floaters drifting in your field of vision. Floaters typically appear when the eye's gel-like vitreous begins to liquefy with age, causing microscopic bits of tissue within the vitreous to float freely inside the eye, casting shadows on the retina.If you see a sudden shower of floaters, this could signal a torn or detached retina and you should see an optician immediately.Blurry vision after LASIK: Your vision may be blurry or hazy immediately after LASIK or any other type of refractive surgery. The clarity of your eyesight typically will improve within a few days, but it may take more time for your vision to stabilise completely.Eye drops and medication: Certain eye drops -- especially eye drops containing preservatives -- can cause irritation and blurry vision. Also, some medications such as allergy pills can cause side effects of dry eyes and blurred vision. During a comprehensive eye exam, your optician can advise whether any of your medications might cause blurry vision.Over-wearing contact lenses: Wearing disposable contact

lenses (or indeed any type of contacts) for longer than your optician prescribed will cause proteins and other debris in your tear film to build up on the lenses. This can cause blurry vision and increase your risk of eye infections.Blurry vision can be a symptom of serious eye problemsIf you have sudden blurry vision in one eye and are over age 60, it's possible you have developed a macular hole in the central zone of your retina. Sudden blurry vision also may be a symptom of a detached retina, eye herpes or optic neuritis (inflammation of the optic nerve).Certain eye conditions and diseases, such as those listed below, can cause permanent loss of vision, so it's important to see an optician for diagnosis and treatment if you experience sudden blurry vision.Cataracts: Vision changes such as blurred vision or cloudy vision, as well as glare and halos around lights at night may be symptoms of cataracts. lf left untreated, cataracts can eventually worsen and obstruct vision to the point of blindness. But by replacing cataracts with artificial lenses, cataract surgery is very successful in restoring lost vision. Glaucoma: Blurry vision or "tunnel vision" may be symptoms of glaucoma. Without treatment, vision loss will continue, and permanent blindness may result.Age-related macular degeneration: Blurry vision and visual distortions causing straight lines to appear wavy or broken could be symptoms of age-related macular degeneration (ARMD), a leading cause of blindness among older people.Diabetic retinopathy: If you have diabetes, unexplained blurred vision may be due to the onset of diabetic retinopathy, a sight-threatening disease that damages the retina of the eye.Cardiovascular disease and other systemic diseases: Blurred vision, often in conjunction with double vision, can be a symptom of an underlying health emergency such as a stroke or brain hemorrhage. It also can be an early sign of multiple sclerosis. If you have sudden blurry vision or double vision, see an optician immediately.If you have mild blurry vision that comes and goes, this could mean simply tiredness, eye strain or overexposure to sunlight.However, sudden or continuing changes in vision such as blurriness, double vision, tunnel vision, blind spots, halos or dimness of vision could be signs of a serious eye disease or other health problem.IS YOUR VISION BLURRY? Find an optician near you and find out what's causing your blurry vision and how best to treat it. Page published on Sunday, 24 May 2020 Page updated on Thursday, 2 June 2022

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