A comparison of the cellular content of needle tip aspirates and entry sites after transconjunctival intravitreal injection (IVI) using different needle types was performed. White outbred rats and human cadaver eyes were used for IVI by hypodermic 27 gauge (G) and 30G needles. and spinal anesthesia Pencan 27G needles. Aspiration of vitreous for quantitative morphological and cell cult... https://www.mamapaisa.com/product-category/nn7/