It is a common practice to use topical anaesthetic drops to provide temporary relief and aid in the examination of the eyes when strong blepharospasm precludes thorough examination. Ophthalmology departments usually have several types of these—for example, amethocaine, oxybuprocaine (benoxinate), and proxymetacaine. The duration and degree of discomfort caused by amethocaine is significantly higher than proxymetacaine,^1, …