Contact lenses vs glasses

Usecontact lenses can offer certain advantages with respect to the use of glasses in certain aspects.

The contact lenses they provide a Visual field total, because its placement does not interfere in the view : the person perceives the objects with a size similar to the real size. For this reason, contact lenses are especially indicated in people with anisometropia (different graduation in both eyes ).

In these cases, especially when there is much difference in graduation between a eye and another, it is advisable to use contact lenses , because with glasses the image that is formed in each eye is of different size and the brain You can not put them together in one image.

They do not exist lateral distortions : as the contact lens moves along with the eye , the person is always looking through the center of the lens . On the contrary, using glasses We do not always look through the center of the crystal. So, when we direct the view sideways or when the glasses are not well adjusted, objects may appear distorted or seemingly displaced, especially when the person has a graduation elevated

The contact lenses do not fog up with temperature changes, since when in contact with the eye , its temperature is similar. However, overexposure to Sun rays .

For many people the use of glasses It can be a problem, because they do not feel comfortable with their image. This is more frequent when the graduation is high, so the glasses they are less aesthetic and more uncomfortable.

In this regard, they are used lenses Cosmetics to change the color of eyes , as well as to hide certain ocular alterations that affect the aesthetic aspect of iris Or the pupil .

In certain sports it is not advisable to use glasses , as it happens in contact sports and those in which rapid and abrupt movements are made, as well as for aquatic .

Sometimes the contact lenses they are used to perform a function therapy , acting in that case as if it were a "ocular bandage "that is, they protect the surface of the eye damaged so that the eyelid does not rub, thus avoiding pain and helping the regeneration of tissue .

In spite of the fact that the advantages of the contact lenses, against the ordinary lenses or bifocals , if there are a series of risks that are worth considering.

Among the most frequent are: Dry eyes (burning sensation and having something stuck in it), the inflammation of the eyelids (because the eye still not adapted to the new device), allergic reaction (Redness of the eyes ), and the hypoxia (low oxygenation of the cornea ).

In addition to these risks, the contact lenses they require some specific care and their use must be progressive. Therefore, to make a good decision, according to your needs, you should first consult with a specialist.


Video Medicine: Contact Lens Basics : How to Get Used to Wearing Contacts (March 2024).