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.
There are a variety of factors that can lead to burning and itching of the eyes. Eye irritation can develop as a result of environmental factors, allergies, underlying medical conditions, age or the use of medications. Common causes of burning and itching eyes may include environmental factors such as: Dust.
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.