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Hello Alexandra,
This gem of wisdom from my Optometrist or Opthamologist or whatever, who tells me I now need reading glasses (after having perfect vision for 49 1/2 years!):
"You don't know how many astonomers come in here complaining of headaches. I ask 'do you wear your glasses?' Always the answer is 'No' or 'Sometimes'. So I tell them:
If you wear glasses especially for short-sightedness, use them when observing or you will get horrible headaches, eyestrain etc etc. Your eye is constantly trying to compensate and bring the object (any object) into focus and since you have to wear glasses in the first place, it can't".
She sounded annoyed so I didn't pursue it any further.
The good news is there are now a fair number of eyepiecs on the market with long eye-relief (15-20mm) that should allow you to wear glasses without bumping the EP.
Also Televue make something called a dioptrix which attaches to their EPs, and, as I understand it, effectively takes the place of your glasses
Posture also has a lot to do with pain but unless you're upside down with your neck bent at a 90 degree angle, shouldn't give you headaches.
The eyepatch by the way, is an excellent idea i've often used one.
All the best!
PJH
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