In dealing with exhaustion and lack of sufficient sleep, we often have to deal with many of the accompanying symptoms, high among them being unwanted eye bags or dark circles under our eyes.

compound eyes, where many individual lenses focus light onto groups of photoreceptor cells. This group of hard-shelled prehistoric creatures had crystal lenses made of calcite, which helped them see ...

with his pink lensed heart-shaped extravaganzas and many others. When did this interest in protecting the eyes begin, and at what point did dark glasses become a social statement as well as ...