The Main Cause Of Astigmatismletter size - Ready to print5 page letter size - 1 pdf* So What you Need:• Printer at home or your office or preferred print shop• Scissors • Paper or sticker sheets (if printing yourself). • Adobe Acrobat Reader if you requested a PDF (free download at http://get.adobe.com/reader/)• Optional items: adhesive, tape, or glue dots if using cardstockHuman Eye Labelling Worksheet, Label the Eye, Label the parts of the Eye, Eye Diagram to Color, Human Eye Anatomy Activity.