Sorry to hear about your husband's trouble. Eye problems do not generally cause headaches. Increase pressures within the eyes may, but usually at the higher pressures only. High intraocuar pressure may cause blurring of the vision associated with halos around lights
, headaches, nausea and vomiting (or any combination).
The wavy lines are not characteristic of high eye pressures. The most common cause of wavy lines (or metamorphopsias) are due to wet macular degeneration, swelling of the back of the eyes (possibly from diabetes), or scar tissue (epiretinal membranes). These causes generally do not cause eye pain.
How old is your husband? Is he having any generalized weakness, weight loss, scalp tenderness, jaw pain with eating? There is a rare condition called temporal arteritis or giant cell arteritis
, which can be ophthalmic emergency.
From what you've decribed, the headache may be unrelated to the eyes. Your husband should get an eye exam to rule out the other causes which I've decribed above. Your primary care doctor should be able to further evaluate the headaches if your ophthalmologist
does not find any of the above problems.
I wish your husband well.