Ophthalmic advices:Toric intraocular lenses
|The toric lens corrects astigmatism in addition to myopia and hyperopia|
The intraocular lens is an artificial lens placed in the eye during a cataract surgery to replace lens which is the natural lens, which when cause is opacified the cataract. Comfortably and safely can eliminate lens opacity, improve vision and diminish the need for glasses. Intraocular lenses are used to correct the refractive errors of the eye.
The toric lenses correct the astigmatism and can be monofocal or multifocal to time. Astigmatism is a condition of refraction in which a clear focus of both near and far objects is difficult. The result is an eye with a problem in the curvature of the cornea, which is irregular in its axes. The cornea is a spherical surface, corneal astigmatism is more oval, which changes the curvature of the axis of the eye and the image obtained is blurred and distorted.
The action is the change the lens graduation of eye and thus, in addition to correct astigmatism, refractive errors corrected are: myopia (poor distance vision), farsightedness (poor near vision) and presbyopia (eyestrain, blurred vision which is in accommodation for near objects). The light passes into the eye through the cornea and lens to the retina projecting end. The lens facilitate proper focusing of light on the retina when placed within the eye in place of the lensline lens is a cataract.
The decision of using intraocular lenses must be in accordance with the patient and the ophthalmologist, assessing the characteristics and needs of the patient and the characteristics of the eye, the lens, and its support on the cornea. To determine the best result is to ascertain whether the patient is a candidate or not the use of such lenses.
The method of phacoemulsification with intraocular lens implantation was performed in most cases with topical anesthesia, ie putting numbing drops in your eye. In some special cases or for comfort cataracts can numb the area around the eye under local anesthesia.
The procedure is rapid, with approximately 10 to 20 minutes. The result of the operation, depending on the structures of each patient, is very successful, and in most cases a very rapid and satisfactory visual recovery. First make a small microincisions eye of about 2 millimeters. Through these incisions, the lens melts, then vacuumed, keeping the capsular bag and support that surrounds it. Is placed into the eye an intraocular lens to replace the natural lens, while avoiding the need for glasses.
The patient may reinstate your daily life easily.