The consequence of astigmatism is the perception of distorted and blurred images, both far and near.

Myopia is a visual change that causes images to be blurred when we look into the distance.

Hyperopia is a visual change that causes images to be blurred when looking closely.

Presbyopia arises around 45 years of age and the main symptom is the need to lengthen the reading distance.

Studies indicate that Computer Vision Syndrome affects about 90% of people who spend three hours or more at the computer.

With the increasing use of electronic media, the debate about the benefits and harms of blue light has intensified.