What are the specific stressors on my vision with computer work?
The human eye is designed for roaming around and focus on objects both near and far. When the eyes are required to keep focus within a narrow range for extended periods of time then a stiffness develops. This manifest itself as difficulty in focusing on objects beyond the screen. Initially this go away after a few minutes or over night. However, over a long period of time it begins to be a permanent condition and you become near-sighted.