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.
That's why when you have allergies your eyes can get watery or itchy, and when you're sick it can feel like your eyes are heavy. Anxiety - a common condition affecting nearly 20% of Americans and millions more around the world - also has its own vision symptoms.