It doesn't seem wrong to me. Surgery to give you 20/20 vision = OK, Surgery to give you 145 IQ = not ok?? Why? How about an expensive piece of optical machinery the rich can wear on their faces to give them good vision?
All of the arguments I can come up with for not allowing the smart surgery/drugs (like it will benefit only the rich, wouldn't be fair etc,) fail on the "Lasik test". I take this to mean that its simply a cultural taboo now and will soon be seen as a curious, archaic belief from the distant past.