Types of Contact Lenses: Gas Permeable Lenses

Posted on August 22, 2018March 26, 2019Categories Optometry

Gas permeable or rigid contact lenses Contact lenses are often a great lifesaver for those who are tired from wearing glasses and suffer from vision problems. There are two types of contact lenses: The soft contact lenses, very comfortable for the patient, which produce little discomfort in the eye due to the materials with which they are made. Gas permeable contact lenses, lenses that provide very clear vision and very good quality, and also allow the passage of oxygen to … Continue reading “Types of Contact Lenses: Gas Permeable Lenses”

Visual perception as a creative resource

Posted on July 21, 2018March 26, 2019Categories Visual Perception

We love to travel to the origin of creativity and, in this case, we are going to go to the most primitive such as vision and visual perception. We have already pointed out that advertising always seeks to surprise us in order to get our attention to its message, but what are they based on in order to achieve it? The closest answer is to know how we see and how our brain builds the image to, once known, use … Continue reading “Visual perception as a creative resource”

Why do we lose visual acuity?

Posted on June 20, 2018March 26, 2019Categories General

For correct vision to occur, the cornea and lens (located at the front of the eye) must cause light rays to strike the retina (at the back of the eyeball) and transmit information to the brain through the optic nerve. Several visual defects can occur that make it difficult for the eye to focus images of the outside on the retina, causing a faulty image of objects to form. Refractive defects are myopia, hyperopia, astigmatism, or presbyopia. On the other … Continue reading “Why do we lose visual acuity?”