Period Costs. Period costs are expenses that are easier to attribute to times and accounting periods than actual production processes or finished goods. Typically, managerial accountant want to classify expenses in categories that can improve operations. Manufactures tend to focus on functional classifications.
The amber color of these impact-resistant polycarbonate lenses block short-wavelength blue light and 100% of ultraviolet (UV) light, thus providing additional protection against cataract formation and the development of macular degeneration, while increasing contrast on both sunny and bright hazy days.
I can't wear contact lenses. Yes, you can! Thanks to advances in contact lens technology in recent years, just about everyone can wear contacts. For example, there are now bifocal contact lenses for people with presbyopia, and toric soft lenses that correct astigmatism. contact lens will get lost behind my eye. Nope! A thin membrane called the conjunctiva covers the white of your eye and connects to the inside of your eyelids, making it impossible for a contact lens to get lost behind your eye.