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.
These are two of the different types of concentric bifocal pattern lenses for bifocal and multifocal lenses. The main vision disorder that multifocal and bifocal lenses are used for is presbyopia â a condition that happens as we age that affects our ability to focus on objects that are near.