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.
If you want to use a pair of bifocals to reconfigure your prescription to get computer vision in the top part of your lens and reading vision in the bottom, do the same thing you would do for single vision computer glasses.