A surgical access device adapted to separate tissue, comprising: an obturator including a shaft extending along a longitudinal axis between a proximal end and a distal end; and a bladeless transparent tip disposed at the distal end of the shaft and having a generally tapered configuration with an outer surface extending distally to a blunt point, said outer surface including a pair of generally opposed sections (50, 52, 54, 56); wherein the shaft is sized and configured to receive an optical instrument having a distal end adapted to receive an image of the tissue; wherein the outer surface has a generally geometric shape in progressive radial cross-sections from a distal cross-section to a proximal cross-section; wherein the pair of generally opposed sections of the outer surface appear as a pair of opposed lines in each of the progressive radial cross-sections; and the at least one of the pair of lines becoming more arcuate in the progressive radial cross-sections; and wherein the access device further comprises a cannula the cannula comprising an elongate shaft extending along a longitudinal axis and defining a second lumen between an open proximal end and an open distal end; the cannula being configured to receive the obturator inside the second lumen and to connect to the obturator such that the obturator does not move axially or rotationally relative to the cannula; the obturator having a small through-hole at its distal end and having at least one hole in the distal tip wherein the obturator is configured for delivering insufflation gasses through the obturator and out the at least one holein the distal tip. an obturator including a shaft extending along a longitudinal axis between a proximal end and a distal end; and a bladeless transparent tip disposed at the distal end of the shaft and having a generally tapered configuration with an outer surface extending distally to a blunt point, said outer surface including a pair of generally opposed sections (50, 52, 54, 56); wherein the shaft is sized and configured to receive an optical instrument having a distal end adapted to receive an image of the tissue; wherein the outer surface has a generally geometric shape in progressive radial cross-sections from a distal cross-section to a proximal cross-section; wherein the pair of generally opposed sections of the outer surface appear as a pair of opposed lines in each of the progressive radial cross-sections; and the at least one of the pair of lines becoming more arcuate in the progressive radial cross-sections; and wherein the access device further comprises a cannula the cannula comprising an elongate shaft extending along a longitudinal axis and defining a second lumen between an open proximal end and an open distal end; the cannula being configured to receive the obturator inside the second lumen and to connect to the obturator such that the obturator does not move axially or rotationally relative to the cannula; the obturator having a small through-hole at its distal end and having at least one hole in the distal tip wherein the obturator is configured for delivering insufflation gasses through the obturator and out the at least one holein the distal tip.