Sometimes the humours of the eyeball are greatly increased in quantity as the result of chronic inflammation of the deeper-seated tissues following a blow. The eyeball will then become distended and enlarged. The transparent humours will also assume a turbid hue. There will, of course, be apparent protrusion of the eyeballs, and impairment of sight, or total blindness. In some cases there is considerable pain; in others, none. The disease is probably incurable under any mode of treatment; but if it be evident that the pain is great, the distention should be overcome by puncturing the sclerotic with a needle. This simple operation will give immediate relief; it is rarely followed by inflammation, but the eyeballs slowly waste away and become sunken in the socket. In those cases which go on to a certain point and then remain stationary, without causing pain, nothing should be done.