I've done wavefront lasik 4 months ago and my left eye is still less clear and see things darker than my right eye. My right eye is 6/6. My initial power was L(500 degrees, astig 250) R(650 degrees, astig 100). The doctor said it could be due to my left eye being naturally weaker and high astig. However, could it be a mistake caused by under correction due to inaccuracy in visual acuity test?