Presbyopia develops gradually. You may first notice these signs and symptoms after age 40:  A tendency to hold reading material farther away to make the letters clearer Blurred vision at normal reading distance Eyestrain or headaches after reading or doing close-up work  You may notice these symptoms are worse if you are tired or are in an area with dim lighting.
presbyopia develops gradually  may first notice signs symptoms age 40:  tendency hold reading material farther away letters clearer blurred vision normal reading distance eyestrain headaches reading close-up work  may notice symptoms worse tired area dim lighting
presbyopia