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Ask HN: Why don't computers tell you when your glasses need cleaning?

3 points by amichail 1y ago

Can't the webcam be used to do this? Of course, you should only be told to clean your glasses when there are smudges near the center of a lens that would actually impact your vision when using the computer.

khedoros1 1y ago
Do your glasses get so dirty that it's visible in a webcam image before you clean them yourself? In typical lighting conditions, I don't think my lenses' smudges are visible until well above the threshold where I'd clean them myself.
- amichail 1y ago
  Then improve the hardware so it can detect these smudges.
  - JohnFen 1y ago
    But why? It's easy to tell when you need to clean your glasses without special equipment. Unless I'm missing something, there doesn't seem to be a problem to be solved here.
bigfatkitten 1y ago
Is this not something you can determine with your own eyeballs?
- dangus 1y ago
  Also, if you have to ask the answer is “yes,” time clean your glasses/shower/perform basic hygienic tasks.
k310 1y ago
Solved! Put up a blank screen. If it's snowing, get out the microfiber. If it's hailing, wash them. Next up, a holographic display that corrects for your vision. Optionally, adjusts to changes in real time. Next up next. Eyeglasses that automatically dispense your eye drops. (You need to look up for this to work) OIMV (Order of invention may vary) Reminder, everyone. Use your monitor in a well-lighted room. A bright monitor in a dark room causes eye strain. Lost the study, but I can speak from experience.
marssaxman 1y ago
If one's glasses have not yet become smudged badly enough to notice, what would be the point of cleaning them?