Suppose in case we don't have emersion oil to reduce the refraction of light, now we know that, the refractive index of water is about 1.33 which is o

Suppose in case we don't have emersion oil to reduce the refraction of light, now we know that, the refractive index of water is about 1.33 which is obviously more than that of air(1.0), so my question is in such case can we examine our specimen using water drop instead of examining it directly(without using anything, means let the air be the medium)????? please answer my question