Also, relaxing the focusing muscles of the eye with the drops is the best way for the doctor to check whether your child needs glasses refractive error ; glasses for children.
In some cases, dilating eye drops are necessary to treat eye problems, such as amblyopia, inflammation, and progressive nearsightedness progressive high myopia. Dilating eye drops used for examination of the eyes usually last anywhere from 4 to 24 hours.
This depends on the strength and type of the drop, and on the individual patient. Dilation can last longer in people with lighter colored eyes, and in some cases, may last longer than 24 hours. Children need stronger drops than adults to accurately measure their need for glasses refractive errors in children.
Weaker drops are used for premature babies or patients with a seizure history. Dilating eye drops used to treat certain eye diseases usually last longer than those used for the eye exam, often lasting up to 2 weeks. Even though they last longer, your doctor may still ask you to use the drop daily or twice a week for effective treatment. Light sensitivity and blurry vision at near are common side effects.
Both these gradually go away within 4 to 6 hours. Sunglasses can help decrease sensitivity to light after a dilated eye exam. Children can go back to school, but teachers should expect them to have blurry vision while reading.
Eye dilation from eye drops used for examination of the eye usually lasts from 4 to 24 hours, depending upon the strength of the drop and upon the individual patient. Pupil dilation tends to last longer in people with lighter colored eyes, since brown pigment in the iris is essentially the only eye pigment, blue eyes lack significant color and gain their blue shade from light reflecting in the iris.
Pigment binds the dilating drops and requires higher doses but blue eyes react faster and stronger to dilation drops. Children require stronger and longer lasting drops than do adults to accurately measure refractive error. Dilating eye drops are occasionally used to treat certain eye diseases such as amblyopia and inflammation in the eye. These therapeutic dilating drops may have a longer duration of action, even up to 2 weeks. This margin is wide because certain factors significantly affect the duration of eye dilation.
In this article, we outline the factors that help indicate how long eye dilation will last. We also describe the potential side effects of eye dilation drops and how to manage them. The dilated eye exam is a medical exam that checks for eye conditions and diseases in their early stages. Before the eye dilation test begins, the eye doctor — either an ophthalmologist or an optometrist — will administer the dilating eye drops. According to the American Academy of Ophthalmology , eye dilation then takes effect within 20—30 minutes.
However, people with blue or green eyes will experience dilation faster than people with brown eyes. While the dilated eye exam may be over rather quickly, the dilation itself continues. During this time, a person may experience the following effects of eye dilation:. The duration of eye dilation can vary widely. According to the American Association for Pediatric Ophthalmology and Strabismus , the average dilation lasts from 4 to 24 hours.
However, doctors may recommend avoiding driving while the eyes remain dilated, especially if the person has not experienced the effects before. Where possible, people should arrange for a friend or family member to drive them home after their eye exam. Eye dilation can cause several side effects.
The most immediate effect is stinging, which generally occurs when the eye dilation drops come into contact with the eyes. In some cases, doctors may apply numbing drops to the eye beforehand to prevent the stinging sensation.
In very rare cases, a person may experience an allergic reaction to the eye dilation drops, which may result in red and swollen eyes. While most people can expect their eyes to return to normal in four to six hours, the effects vary from person to person, and in some cases, dilation can last as long as 24 hours. For example, children and people with lighter colored eyes may experience dilated pupils for up to 24 hours after the exam.
How to cope with the effects of dilation? A good pair of sunglasses should help you safely return to daily tasks.
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