Eyecare Glossary

AKA Progressive lenses or Multifocal Lenses, varifocals are eyeglass lenses designed to correct presbyopia by providing clear vision at different distances. Varifocals have a smooth transition of lens power from distance vision at the top to intermediate vision in the middle and near vision at the bottom, allowing wearers to see clearly at various distances without switching glasses. More about Varifocals...

The vitreous is a jelly like material that fills most of the space inside the eye. As we age, the vitreous often liquefies and may collapse. This is more likely to occur, and occurs much earlier, in the eyes that are nearsighted (myopia). It can also occur after injuries to the eye or inflammation in the eye.