Diagnosis, epidemiology, treatment Dr Alberto Bellone, ophthalmic surgeon In the 1980s and 1990s, many short-sighted people chose radial keratotomy. It was the only refractive surgery available, and for years it worked. Those people are now in their fifties, sixties and seventies. And many of them come back to the ophthalmologist with a problem nobody had...Read More

What is presbyopia? Presbyopia is the process of losing the ability to see things up close that begins at the age of 40-45 and is completed around 55-60. Presbyopia is not a disease, but a natural phenomenon whereby all individuals of both sexes become affected: with the loss of crystalline elasticity, reading tends to be...Read More

Video Transcription: Astigmatism is a vision defect in which the patient sees badly from far, intermediate, and near distances. Therefore, there is no point where he can see in focus. Normally, the cornea and lens are smooth and curved equally in all directions. This helps to focus light rays sharply onto the retina at the...Read More

Hypermetropia or hyperopia is a visual defect in which the incoming light rays focus behind the retina instead of on it. This results in seeing distant objects easily but have difficulty focusing on objects that are up close. Hypermetropia occurs when the eye is shorter than normal or has a cornea (clear front window of...Read More

 Video Transcription: Myopia is a vision defect in which the eyeball is too long and its shape causes light to bend incorrectly and focus images in front of the retina instead of on it. Therefore, the patient’s vision is blurred from afar and as he approaches the object, the image improves. The improvement occurs...Read More