Health: Bad Weather For Eye Surgery

Sometimes it's both the heat and the humidity. According to a study in the Journal of Cataract and Refractive Surgery, weather can affect the success of LASIK surgery, used to correct poor eyesight in a million American patients a year. Dr. Keith Walter at Wake Forest University reports that the hotter and more humid it is when doctors perform the operation, the more likely patients are to come back for follow-up procedures. High humidity can apparently cause the cornea to swell, affecting the surgeon's accuracy. --By Sora Song