A little bleary-eyed after a long holiday season and New Year's celebration? If you have a smartphone, there's an app for that.

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With the help of free or low-cost applications, your smartphone can become a magnifying glass. Many of the apps include a flashlight function to better read items in a dark setting, such as menus in a restaurant.

A search of the Google Play store (for Android devices) or the iTunes store (for Apple phones and tablets) turns up several choices. Among the highest rated by users are Smart Magnifier (Android; free), Your Magnifier (Android; free), Magnifying Glass With Light (iPhone, iPod Touch, iPad; free) and Over 40 Magnifier and Flashlight (iPhone, iPod Touch, iPad; $1.99).