 A microvitreoretinal blade was used to create a sclerotomy at this site and a 4-mm infusion cannula was introduced through the sclerotomy and tied in place with the aforementioned suture. 
A microvitreoretinal blade was used to create a sclerotomy at this site and a 4 - mm infusion cannula was introduced through the sclerotomy and tied in place with the aforementioned suture .