For any comparison to be made there must be at least two things to compare. For you to notice eye strain you must be able to experience relaxed eyes. The opposite is also true. If your eyesight has worsened over the years then you probably have not noticed how gradual the strain has become, and [...]

Glaucoma is a group of eye diseases of the optic nerve involving loss of cells located at in the retina, the back of the eye. If glaucoma is untreated it leads to permanent damage of the optic nerve and visual field loss, which could lead to blindness. Glaucoma Symptoms Open angle glaucoma (OAG) or chronic [...]

Puffy eye is a condition where the area under the eyes are “puffed up”. Eye puffiness is a type of fluid build-up (edema) in the tissues around your eyes. It affects the look of the face and eyes, but is rarely a serious problem. The cosmetic aspect of puffy eyes is important as it gives [...]

Myopia (nearsighted or short sighted) This is one of the most common vision disorders. It is the inability to focus on objects at a distance. The light rays are focused at a point in front of the retina, causing a blurring of the image. Myopia is typically caused by continued up close activity which causes [...]

The eye is one of the most complex parts of the body. There are more than a billion parts all working in synchronization. The eyesight is one of the most important senses, a fact supported by the amount of brain that is dedicated to process the information received through the eye. How the eye works [...]

Contact lenses are a popular way to correct eyesight, whether short sighted, far sighted, presbyopia, or stigmatic eyes. Contact lenses can also be uses by people who have had eye surgery for cataracts. Disposable contact lenses have become very popular, though a lot of people use hard contact lenses and gas permeable lenses. Obviously with [...]

In 1864 a test for visual acuity (the clarity or sharpness of vision) was devised by Herman Snellen, a Dutch opthalmologist. Using the eyesight of his assistant Snellen created a chart with letters on it. The “snellen” chart has different sized letters on it and forms the basis of modern eye exams. Snellen decided what [...]