The viscoelastic substance is used for protecting corneal endothelium from surgical trauma, while intraocular lens is positioned in the eye. Studies are also being conducted to find if fixed dilated pupil after this surgery is associated with the use of viscoelastic substances such as hypromellose or methyl cellulose in cataract surgery. The patients may have a blurred vision until the effect of these drops fades away. In certain cases, where small incision surgery may not help, procedures such as phacoemulsification or extracapsular cataract surgery may be used for removing the lens of the eye. A small incision is made in order to remove the lens, and replace it with an artificial intraocular lens. This helps the doctors examine the inner portion of the eye that lies behind the iris.ĭilating the pupil allows the surgeon to examine the lens, retina and the optic nerve and also makes the removal of the crystalline lens easier. Mydriatics may temporarily paralyze the iris sphincter muscle that contract the pupil or stimulate the iris dilator muscle that cause the pupil to dilate. The drops that are used for dilating the pupils are referred to as mydriatics. Dilating the pupils is an integral part of the eye examination as well as the cataract surgery. It usually dilates or widens in dim light. The pupil may contract or dilate depending on the amount of light entering the eye. It is through the pupil that the light enters the retina. The pupil is an aperture or an opening in the center of the iris of the eye. Prior to the surgery, the surgeon puts dilating drops so as to enlarge the pupils. If cataract is diagnosed at an early stage, a small incision cataract surgery can be performed to remove the cataract. What Causes the Pupils to Dilate After a Cataract Surgery? In this article, we will find what causes dilated pupil after cataract surgery. Under the cataract surgery, the surgeon removes the eye’s natural lens and implants an artificial intraocular lens in its place. The surgical process that is used for the same is referred to as a cataract surgery. It is therefore essential to correct the loss of optical clarity of the eye’s natural lens. If the crystalline lens loses its clarity, or becomes cloudy or opaque, the brain would not be able to receive signals and process the signals to form a visual image. It is the interpretation of the impulses by the brain that helps us visualize the world. After the image is formed on the retina, light is converted into neurological impulses, which in turn, are conveyed to the brain. For one to be able to see, the light must first be focused on the retina. The crystalline lens as well the cornea of the eye are both optical structures that help us see. Cataract is an eye problem that is associated with the clouding of the eye’s natural crystalline lens that is located behind the iris.
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