Presbyopia is the gradual loss of the eye's ability to focus on nearby objects as people age. It typically develops after age 40 as the lens inside the eye loses elasticity. Treatment options include monovision contact lenses that correct for distance in one eye and near in the other, modified monovision, and bifocal contact lenses that provide both distance and near vision corrections.

2. Presbyopia
 The magical age
 What happens in presbyopia

3. How to treat presbyopia

4. Contact lens options
 Monovision
 Modified monovision
 Bifocal soft
 Bifocal rigid