3 ms·
Most people may not use these muscles, but I do, to adjust the focus of my bifocals as needed. Zoom and enhance!
by buildsjets 2y ago
Most people may not use these muscles, but I do, to adjust the focus of my bifocals as needed. Zoom and enhance!
- alexjm 2y agoThat was how I learned to tense my ear muscles -- because I could see they made my glasses shift on my face.