The pterygium is a growth and inflammation of the conjunctive one, which is a transparent weave that covers the external surface with the eye. The patients who suffer it mainly report a growth of a €œfabric€? in the eye of the nasal side.

In the cases of pterygium it is common that the patient needs to frequently lubricate his eyes with artificial tears and that she uses lenses with filter for the violet extreme radiation.


It is a modern ambulatory treatment to reinforce the cornea. It consists of applying a dose of riboflavin along with a radiation of inoffensive light ultraviolet for the eye that altogether forms a chemical reaction to fortify corneal fibers and to avoid or to decelerate the corneal deformation by keratoconus or another type of corneal diseases.


It is a disease of the cornea in which a deformity exists or ectasia of the previous and later surface. This deformity produces the thinning of the corneal weave and lies down to generate irregular astigmatisms which must of being dealt initially with contact lenses of special designs.

In advanced cases surgeries exist that improve the condition of the patient as they are it you implant them of intraestromales ring and transplants of cornea.


Inside the eye we have a called lens crystalline, when this lens loses optical his propiedasdes and he becomes opaque denominates Cataract which can be developed consequently to accumulation of violet extreme radiation, blows, consulmo of some medecines among others.

In initial cases the cataract can be dealed with lenses (spectacles or contact) but in moderate cases or advanced the surgery is necessary.

The surgical treatment of the cataract consists to retire the opaque crystalline by a denominated method facoemulsificación in which the cataract by means of ultrasound radiation dissolves and later an intraocular lens is implanted that allows the patient to return to see with normality.

At present the intraocular lenses have designs that allow to correct the majority of visual problems and multifocal lenses even exist so that the patient can recover so much by far the vision as the one close by.

Refractive surgery with Excimer Laser

The refractive surgery, more well-known as LASIK by its abbreviations in English, is a method in which by means of a ray laser the ocular surface is corrected to correct the visual problems as the myopia, hyperopiums and astigmatism.


Also denominated tired view, it is an ocular defect that appears generally as of the 40 years and causes difficulty to see close by. Approach power of the eye is due to the reduction of the accomodation or that brings about diminution of the capacity to focus near objects.

The first symptom that refireren the patients with presbyopia is that it becomes difficult to them to read or that they have to do the objects of near a greater distance the one than they are customary. This condition is progressive until the person fulfills between 65 and 70 years of age.


In the case of the astigmatism which happens that the form of the eye (mainly the cornea) is irregular, produces a distortion in the images that arrive as much at the eye for vision by far as close by.

A person can suffer as much of associate astigmatism to the hyperopiums, as to the myopia or even with both.

It is common that the patients with astigmatism aside from presenting blurred vision have problems as double vision or ghost images when reading or to want to focus detailed images. Also the confusion of letters, numbers or jumps of words is common when they read.


In opposition to the myopia in the case of the hyperopiums the eye has dimensions smaller generally than they cause that the visual system works in greater amount to focus the objects that are as much to long distances as short.

In the case of the hyperopiums not necessarily there is a diminution of the visual sharpness since it depends on the capacity of the approach system (accomodation) that has the individual that suffers it.

In the cases that the hyperopiums affects the visual sharpness of which they suffer it usually it affects the first vision of fence but the hyperopiums degree is elevated can even lead to a diminution of the distant vision.

As group of symptoms common in the farsighted patients can be found the visual fatigue, headache red, eyes and lagrimeo among others.


Product of several factors is a condition that produces diminution of the distant vision being a most common increase in the size of the eye, or a greater curvature of the lenses of the eye (corneous and crystalline). In addition to the deficit of visual sharpness, the myopia can also lead to headachesstrabismus, visual inconvenience and irritation of the eye.

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