Today I Learned:
1) ...the differences between an optician, an optometrist, and an ophthalmologist.
An optician is a technician trained for fitting and prescribing eyeglasses and contact lenses. And that's about it.
An optometrist is an eye-care person who can also administer vision tests, perform vision research, and diagnose (some?) eye-related diseases. Optometrists go through a 4-year eye-specialized version of MD training, making them very qualified with respect to eyes and not particularly in other fields.
An ophthalmologist is an MD specializing in eye care. Opthalmologists are qualified to do pretty much anything related to the eye, up to and including eye surgery.
Thanks to Meaghan Sullivan for (inadvertently) teaching me these!
2) I can cook stir-fry for about half as much time as I thought I needed to and it still comes out fine!
3) The Andromeda galaxy, as viewed from Earth, looks approximately ten times bigger than the moon by radius. It's just very dim, and thus hard to see. There's a nice false-color composite to show scale here: http://ift.tt/1iMXw57
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