Dollery C T, Bulpitt C J, Daniel J, Clifton P
Br J Clin Pharmacol. 1977 Jun;4(3):295-7. doi: 10.1111/j.1365-2125.1977.tb00715.x.
1 Four hundred and eighty-three hypertensive patients being treated with propranolol or other hypotensive drugs were questioned about symptoms of gritty feelings, sore or red eyes, photophobia and use of eye drops. 2 Between 11.6% and 29.8% gave positive answers but there was no difference between the different drug regimes. The complaint of 'red eyes' was more common in smokers.