Contact Lenses and Reflection

I didn’t really experience anything exciting that was physics-related this week; however, when I was putting in my contacts this morning, I remembered that we are learning about lenses. I always wanted to know how contact lenses worked ever since I got them because my vision improved dramatically when I got contacts. I’m nearsighted, which means that my eyes can’t focus on far away objects because the light rays converge in front of the retinas in my eyes. Therefore, I need diverging lenses in order to help me see faraway things because diverging lenses make the light rays diverge a little more so that they can converge farther away, at the retinas. When I was looking at my contacts, I also realized that they are fatter at the edges than at the center, just like our textbook says about diverging lenses for nearsightedness. When I was taking the picture of my contacts for this blog, I also realized that I was in front of a plane mirror, and since we are also learning about reflection, I decided to incorporate the image of my contact lenses in the picture.