{"id":5111,"date":"2019-07-22T23:00:37","date_gmt":"2019-07-22T20:00:37","guid":{"rendered":"https:\/\/okomedikas.com\/blog\/zrachki-raznogo-razmera-pochemu-eto-sluchaetsya-i-chem-eto-grozit\/"},"modified":"2021-03-04T10:42:10","modified_gmt":"2021-03-04T08:42:10","slug":"zrachki-raznogo-razmera-pochemu-eto-sluchaetsya-i-chem-eto-grozit","status":"publish","type":"blog","link":"https:\/\/okomedikas.com\/en\/blog\/zrachki-raznogo-razmera-pochemu-eto-sluchaetsya-i-chem-eto-grozit\/","title":{"rendered":"Anisocoria (Different Sized Pupils). Why Does It Occur? What Are the Threats?"},"content":{"rendered":"

\"\u0417\u0440\u0430\u0447\u043a\u0438
\nEveryone knows that the size of the pupil can change in response to changes in lighting. After all, its main function is precisely to protect the retina from a large amount of light entering the eye. Therefore, when exposed to bright light, the pupil narrows, and in dim light, it expands. The pupils of both eyes can simultaneously expand not only in response to dim light, but also to stress, emotional overwhelm, anger, or after using some medications.<\/p>\n

Moreover, the size of the pupil depends on individual characteristics of the optical system of the human eye. For example, people with large eyes tend to have large pupils. But if one pupil is larger than the other, it means that some changes have occurred in the visual system. And it is crucially important to find out which ones.<\/p>\n

Very often, shortsighted people have unequal pupils<\/strong>: in an eye with higher myopia the pupil can be dilated due to excessive eye strain.<\/p>\n

If the pupil of the eye with high myopia is larger than the other one, this can be a sign of an insufficient or inadequate vision correction. A consultation with the ophthalmologist will help understand the cause of this condition and find a solution to the problem. It is imperative for you not to delay your visit to an eye care professional so that you could prevent the harm to your eyes caused by the disorders that can be successfully treated with timely diagnosis.<\/p>\n

If you notice that your pupil sizes are too unequal, and one of them lacks the light reflex, the expert`s advice is also required, since the cause could be very serious. Among the causes can not only be eye disordes, but also tumors, brain injuries, infectious diseases, neurological disorders, etc.<\/p>\n

Causes of Anisocoria<\/h2>\n

There are many reasons for different sized pupils, so if this is the case, a comprehensive diagnosis is often required. Do not hesitate to visit the eye doctor, since some dangerous diseases are symptom free. At the same time, your vision may remain normal for long, but if not to start its treatment in time, at some point it will begin to deteriorate rapidly and irrevocably.<\/p>\n

\"\"<\/p>\n

The conditions in which one pupil looks noticeably larger or smaller than the other are often associated with brain activity – that is why the diagnostic procedures are performed by both the eye doctor and the neurologist. First of all, they should find out if there is a pupillary light reflex. If one pupil does not have such reflex, this might indicate damage to the midbrain.<\/p>\n

Pupils can also be of different sizes when a person has such eye condition as anisometropia. In this case refractive power of the left and right eye differs very much, the organs of sight therefore are subjected to excessive strain, even when the vision is being corrected with glasses or contact lenses. Contact lens correction is the most preferable option, since it allows to achieve the highest level of visual acuity while maintaining an optimal level of comfort for patients.<\/p>\n

A Child Has Unequal Pupils – What to Do?<\/h2>\n

Slight differences in pupil sizes in children are a physiological norm. If the pupillary inequality is significant, then it may be associated with congenital anomalies, when not only pupil sizes, but also visual acuity in both eyes could vary. Different sized pupils in children are sometimes caused by microphthalmia, also called small eye syndrome and are often accompanied by strabismus. Such disorders are diagnosed in early childhood. But if you noticed that in an elementary school student one pupil is larger or significantly smaller than the other, then they should urgently go to the eye doctor, because these defects could be associated with a brain injury, a tumor, retinal diseases or optic nerve damage.<\/p>\n

Remember:<\/strong> an early diagnosis and adequate vision correction help avoid many problems. The sooner you see the eye doctor, the less likely you are to get unwanted complications. At Okomedikas Ophthalmology Clinic you can undergo a complete eye examination using modern equipment and consult a highly qualified doctor.<\/p>\n","protected":false},"excerpt":{"rendered":"

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