抄録
An ophthalmologist removes the vitreous from the eye by using vitreous cutter, and meanwhile replaces fluid in the eye with a balanced salt solution by injecting it through infusion port. Jet flow from the infusion port may cause intense flow. Consequently, this may generate a pressure and a shear stress on the retinal wall and lead to the damage of retinal cell. To measure the two dimensional distribution of two-component velocity in the test section, we applied PIV. Under the condition of Re=66 to 99 which meet in the real operation, we estimated that the maximum shear stress reaches 0.4 Pa. This value is insufficient to cause retinal detachment.
