History of atopy or severe anaphylactic reaction to variety of allergens. CV diseases (eg, CHD, Prinzmetal's angina & cardiac failure), hypotension; severe peripheral circulatory disturbance/disorders; resp reactions including death due to bronchospasm in patients w/ asthma; spontaneous hypoglycaemia or w/ labile diabetes; hyperthyroidism; muscle weakness consistent w/ certain myasthenic symptoms eg, diplopia, ptosis, generalized weakness; active intraocular inflammation, predisposing risk factors for uveitis; choroidal detachment. Aphakic patients, pseudophakic patients w/ torn posterior lens cap or anterior chamber lenses, known risk factors for macular edema. Possibility of permanent change in eye colour, periorbital &/or eyelid skin darkening; increase length, thickness, pigmentation &/or number of lashes. Not recommended w/ another topical β-blockers. Concomitant use w/ surgical anesth. May affect ability to drive & use machines. Not to be used during pregnancy. Lactation. Not recommended in childn & adolescents <18 yr.