Since the screen is usually placed farther and higher than the usual reading distance, different glasses or contact lenses may be necessary. Even individuals who do not normally wear glasses may find them beneficial. Computer bifocals, with the top of the lens designed for the computer screen and the bottom of the lens designed for nearer printed materials, are becoming increasingly popular. When visiting the ophthalmologist, information regarding the layout and dimensions of your workstation allows proper calculation of the lens power that will work best for you. Sometimes overlooked, the computer work environment requires a fairly unchanging body, head and eye position which can be fatiguing.
Frequent eye blinking, artificial tears for lubrication and periodic rest breaks are important.
At the current time, ocular neurological tissues, such as the retina and the associated visual areas of the brain cannot be replaced. Immature retinae taken from embryonic rats survive transplantation to the brains of newborn and adult rats. They connect up with many regions of the host brain that respond to visual signals. While transplants are responsive to light and can connect with appropriate brain regions, in rats, is no guarantee that they can transmit useful information to the brain. Transplantation of fetal cells secreting dopamine have been done in humans to alleviate the symptoms of Parkinson's disease.