July 13, 2026 · 12 min read
Affiliate Disclosure: This article contains affiliate links to Amazon Canada. If you purchase through these links, I may earn a small commission at no extra cost to you, which helps support my work as an optometrist and content creator.
Introduction: Why Your Mouse Matters for Your Eyes (and Wrists)
As an optometrist, I’m constantly analyzing how our digital habits impact our vision and overall well-being. While screens and lighting often take center stage, the humble computer mouse plays a surprisingly critical role in your ergonomic setup. A poorly designed or ill-fitting mouse can lead to not just wrist pain and repetitive strain injury (RSI), but also contribute to neck tension and compensatory head movements that directly impact visual comfort and digital eye strain.
June 19, 2026 · 6 min read
Affiliate Disclosure: Desk Wellness Lab is reader-supported. Links in this article may be affiliate links — if you purchase through them, we earn a small commission at no extra cost to you. This never affects our recommendations.
🏆 Best Ergonomic Trackball for RSI Prevention
Kensington Expert Mouse Trackball
Price: $79–$99
Reduces wrist movement by 90% compared to traditional mice, significantly lowering repetitive strain injury risk.
View on Amazon →| Product | Price | Best For | Rating | Link |
|---|
| Kensington Expert Mouse Trackball | $89 | Maximum wrist strain reduction | 4.7⭐ | Buy → |
| Logitech ERGO Trackball | $59–$79 | Comfortable and approachable for new users | 4.5⭐ | Buy → |
| Orbit Wireless Trackball | $49–$69 | Budget-friendly thumb-operated option | 4.2⭐ | Buy → |
Repetitive strain injury (RSI) is one of the most prevalent occupational health problems for desk workers. Millions of people experience wrist pain, carpal tunnel symptoms, and inflammation directly linked to repetitive mouse movements. As a licensed optometrist who specializes in workplace ergonomics and injury prevention, I’ve observed that RSI is not inevitable—it’s often the result of suboptimal equipment choices. Traditional mice require constant wrist pronation (twisting) and fine motor control, engaging the forearm and wrist extensors in repetitive, fatiguing movements. Ergonomic trackballs invert this paradigm: instead of moving the device, you move the ball with your fingers or thumb, keeping your wrist in a neutral position and dramatically reducing repetitive strain. For workers experiencing or at risk of RSI, trackballs can be transformative.