Later, circular needles were invented, which can also be used to knit in the round: the circular needle looks like two short knitting needles connected by a cable between them. Longer circular needles can be used to produce narrow tubes of knitting for socks, mittens, and other items using the Magic Loop technique.
Itchy eyes are usually caused by allergies, which can be irritating. Itchiness can also be caused by pink eye, eye strain, or eye fatigue. If you are in a lot of pain or suspect an infection, see your doctor as soon as possible.
Other Conditions causing ocular itching and burning found on other pages: 1  Conjunctivitis - pink eye, with redness, discharge, lid swelling. 2  Contact lens problems - contact lens use can cause itching and irritation, due to allergy or improperly fitting lenses. 3  Episcleritis - localized eye injection with mild symptoms.