THE REGURGITATION OF LARGE VITREOUS INJECTIONS

The same quantity of a fluorescein labelled dextran was injected into the vitreous humor of 5 rabbits; in one eye, disserved in 10 mu l solu tion and in the other, 100 mu l. The level of fluorescence in the two eyes was compared a few days later and found to average only 12% less with the larger volume. It is concluded that regurgitation through the needle hole can be ignored in spite of the very high intraocular pres sure created by the 100 mu l injection.