Light Blue Contact Lens

contact lens
A contact lens (also known simply as a contact) is a corrective, cosmetic, or therapeutic lens usually placed on the cornea of the eye.
A thin plastic lens placed directly on the surface of the eye to correct visual defects
contact: a thin curved glass or plastic lens designed to fit over the cornea in order to correct vision or to deliver medication
A thin lens, made of flexible or rigid plastic, that is placed directly on to the eye to correct vision, used as an alternative to spectacles, or, if coloured, to change one's eye color cosmetically

light blue
of a light shade of blue
In computing, on the X Window System, X11 color names are represented in a simple text file, which maps certain strings to RGB color values. It is shipped with every "X" installation, hence the name, and is usually located in <X11root>/lib/X11/rgb.txt.
Blue is a colour, the perception of which is evoked by light having a spectrum dominated by energy with a wavelength of roughly 440–490 nm. It is considered one of the additive primary colours.