Presbyopia is a common condition where the eye loses its ability to see close objects clearly. In a presbyopic eye, the lens, which would normally alter shape to adjust focus for close objects, slowly loses its flexibility. This usually starts happening between the ages of 40 and 45 and can continue up to the age of 65. To focus a close image on the retina, a plus spectacle lens is required to be placed in front of the eye. This will allow the spectacle wearer to see close objects clearly, but it will make distant objects blurry. Presbyopia is experienced by everyone as it is part of the aging process and it cannot be prevented.

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