Vitreous surgical probe

A vitreous surgical probe includes:

• a probe body penetrating an eyeball;
• and a cutter blade with an outer diameter fitting an inner diameter of the probe body, sliding along the inner surface of the probe body,
• in which the probe body includes:
• a tubular portion with an opening in vicinity of a tip portion thereof;
• and a tip wall portion sealing the tip portion of the tubular portion,
• the cutter blade includes a cutting edge at a tip thereof,
• the tip wall portion is inclined so that, in a first cross-sectional shape on a first plane passing through a central axis of the tubular portion and extending from a side of the opening to an opposite side of the opening, a part located on the opposite side of the opening at a tangent line passing through an intersection of the central axis is toward a proximal side, and a part from the opposite side of the opening to the intersection of the central axis in the first cross-sectional shape is positioned on the tangent line proximally relative to the tangent line, and in a second cross-section shape on a second plane passing through the central axis of the tubular portion and perpendicular to the first plane, at least outer edge portions of the tip wall portion are positioned proximally relative to the intersection of the central axis.