A reminder that it’s important to look away from screens sometimes. The rule of thumb about looking away (and possibly focusing on a distant location) for 20 seconds every 20 minutes is generally valuable. Also, enlarging text (e.g., by Ctrl +) also lessens eye strain for reading.
This seemed like an important entry to write in an increasingly digital time. Perhaps one could make a comparison with the quote of how there is a distinction between people who see and people who have the capacity to see.