categories: visual, ocular, general and musculoskeletal and can include: • Headaches • Blurred Vision • Neck pain and back pain • Red, dry, tired eyes • Fatigue • Double vision • Difficulty refocusing the eyes • Poor concentration Gunnars are high tech computer and gaming eyewear designed to address the symptoms associated with prolonged computer work and gaming by protecting, enhancing and optimising vision. The visual demands of computer work and digital display screen
exposure are unlike those associated with most other activities. Because computer work or gaming occurs at a shorter working distance, the eyes are constantly forced to focus. The eyes are in their most relaxed position when gazing objects of six metres or further. When gazing these distances, the axes of the eyes are parallel and the tension in the eye muscles are equal. Also, the intra ocular lens, responsible for changing focus, is in an entirely relaxed state. When viewing objects closer than 6 metres however, two visual systems are at work to ensure focus. gamecca53
Accommodation refers to the visual process by which the eye changes optical power to maintain a clear image or focus as the distances of an object varies. This is accomplished by contraction of the cilliary muscles (muscles controlling the intra ocular lens) so that the intra ocular lens change shape, maintaining a clear image on the retina. Convergence is the action of the eyes undertaken when the eyes must rotate inward toward the nose so that the eyes can focus properly. The closer the object the more the convergence demands on the eyes when
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