The common method used in the treatment of refractive errors such as myopia, hyperopia and astigmatism is the Excimer laser method. Today, two techniques are applied in Excimer Laser treatment. 1 - Superficial treatments. (PRK-LASEK) 2 - Deeper treatments (LASIK) It is the treatment method that will be preferred in low-grade refractive errors and those whose corneal thickness is not sufficient for the Lasik method.
The retina is a layer that contains light-sensitive cells (cones and rods) and nerve fibers that allow us to see. The mesh layer we call the retina covers the back wall of the eyeball just like a wallpaper. The retina consists of millions of visual cells. These cells that make up the retina transmit images to the optic nerve with nerve fibers. The optic nerve contains 1.5 million nerve fibers and transmits the image to the brain like an electronic cable. With another analogy, we can liken the retina to the white screen on which the image of the film falls in the cinema. Just as any disorder on this screen causes the film to be viewed distorted, the defects in the retina cause the image to be transmitted to the brain incorrectly or even not at all.
Occasional drooping of the eyes is normal in infants in the first 3 months. Later shifts should be evaluated by an ophthalmologist. Slips can sometimes be more than just a simple strabismus. Constant drooping of one eye is a sign of less vision in that eye and is important. There may also be congenital muscle paralysis. Paralysis of the nerves coming from the brain to the muscles that provide the movements of the eye can be seen. If the dimensions of the bony pit (orbita) in which the eye is located are different, then it may cause disturbances in the movements of the eye. Sometimes, structurally, some muscles of the eye do not work regularly and movement disorders can be seen in the eye. Sometimes, Anomalies can be seen due to problems in pregnancy.
Cataract is an eye condition that results in the loss of transparency of the natural lens in the eye, resulting in decreased vision. 90% of it occurs due to advancing age. But it can be seen in any age group, including babies. In order for the light and images from outside to reach the visual center clearly, they must first be refracted in the cornea, the outermost transparent layer of the eye, and then in the lens layer inside the eye. Under normal conditions, these two layers are transparent. The lens loses its transparency, becomes opaque, changes color, becomes like frosted glass, and the patient's vision gradually decreases. Cataract is the condition in which the lens in the eye loses its transparency and becomes opaque. It is one of the leading causes of blindness that can be treated in the world.
The eye is an optical system similar to a camera. Light and images coming from the outside are refracted in the cornea (the outermost transparent layer of the eye) and the lens layer and reach the visual point on the retina. In a normal eye, the rays coming from the outside are refracted in the cornea and lens and fall into the visual center, forming a clear image. In some cases, depending on the cornea, lens and eye structure, images may not form clearly on the retina.
