Welcome to healthcaremagic
problem u have? what is ur vision/colour vision? Is there any cross eye/deviation of eyes?
In IT which segment u r going to work means ur job may require u to see minor things or different colours!
It all depends upon ur job requirement but as such there is no medical test done before employment in IT except in MNCs.
If u have cross eye, get it corrected before ur interview/ joining service.