Eyelid Twitch

What are eyelid twitches? An eyelid twitch, or myokymia, is a repetitive, involuntary spasm of the eyelid muscles. A twitch usually occurs in the upper lid, but it can occur in both the upper and lower lids. For most people, these spasms are very mild and feel like a...

How Far Away Should Reading Material Be Held?

Harmon Distance Research on human ergonomics has determined that the optimal visual distance for reading and other close work is the Harmon Distance or “Elbow Distance”. This distance is measured by placing a closed fist under the chin and resting the elbow on a...

Contact Lens Care Systems & Solutions

Multipurpose Solution Multipurpose solution is an all-in-one care system used to clean, rinse, disinfect, and store soft contact lenses. This solution is the most commonly used care system among soft contact lens wearers. Follow these steps for proper use of...