<p>Use as a 0.4% solution in short ophthalmic procedures. Instil 1 drop into the conjunctival sac to allow tonometry after 60 sec; a further drop after a 90 sec interval produces sufficiReduce systemic absorption by compressing the lacrimal sac at the medial canthus for a minute during and following instillation. Heart block; epilepsy, impaired cardiac conduction, myasthenia gravis; not to be applied to inflamed, infected tissues or damaged mucosa. Protect anaesthetised eye from dust and bacterial contamination; cornea may be damaged by prolonged application. Do not drive until normal vision restored.ent anaesthesia for the fitting of contact lenses; 3 drops at 90 sec intervals produces sufficient anaesthesia after 5 min for a foreign body to be removed from the corneal epithelium or for incision of a meibomian cyst through the conjunctiva.</p>