The serosanguinous fluid can appear pinkish in color due to the small amount of blood cells that mix with the serous drainage. The consistency of this exudate is watery and thin and typically appears during the healing of wounds.
Bifocals are often prescribed for presbyopia. Bifocals are eyeglasses that have two different prescriptions in one spectacle lens. The top part of the lens corrects for distance vision and the lower portion of the lens is designed to help a person see objects up close.
Occupational multifocal lenses can be achieved by simply positioning common multifocal lenses in unusual ways. Ordinary trifocal lenses are properly fitted by placing the top line to be just below the pupil. By placing trifocal lenses higher, the wearer is needless to look down or tilt back the head to get near vision.