USE IN THE U.S. : Current estimates are that there are more than 75 million
Americans using computers on a daily basis. Predictions indicate that fully
70% of the working population will be using computers by the year 2005. In
1991, more than 10 million Americans sought out an eye examination primarily
due to problems related to computer use. These numbers are all sure to increase
as our dependence on computers continues to grow.
WHAT IS COMPUTER
VISION SYNDROME: Computer Vision Syndrome (CVS) has been defined by the
American Optometric Association as "the complex of eye and vision problems
related to near work which are experienced during or related to computer use".
It consists of a series of signs and symptoms which computer users experience
and which are thought to be caused by this type of near point activity.
OF CVS: The symptoms of CVS include eyestrain, blurred near or distance
vision, headaches, dry or irritated eyes, neck and/or backaches, light sensitivity
or double vision. Any combination of these symptoms may be present and should
not be taken lightly when examining a patient with these complaints. We will
investigate each of these symptoms and discuss possible causes.
AND CVS: There are a number of visual conditions which can contribute
to CVS, including dry eyes, accommodative disorders, binocular vision dysfunction,
presbyopia, and various refractive states. Each may contribute to the severity
of CVS and each must be addressed thoroughly in order to correct the problem.
We will discuss the various vision tests which should be performed to adequately
survey each condition. On-site vision screening programs have shown to be
a valuable addition to resolving these problems.
OPTIONS: There are many options available to treating CVS. We will be
discussing the various lens prescribing options, including task specific lenses,
as well as the power variations which might be considered. Vision therapy
techniques are also very valuable in resolving many of these problems.
Ergonomics is the area of study dealing with the relationship between humans
and their work. Environmental influences can have a dramatic influence on
which lens prescription should be adopted, as well as the power to be used.
We will discuss the various environmental information you should solicit from
your patients and some of the recommendations you might consider.