Hi Polly!  When in doubt, it's best to get an eye exam.  Don't worry.  You don't have to study for the test!  Here are some indications:

1.  Blurred close-up vision.  2.  Poor distance vision.  3. Difficulty seeing at night.  4.  Increased difficulty adjusting from dark to light.  5.  Difficulty in reading or working at a computer.  … Read more