My right eye can see better in the dark then my left eye. My left eye's pupil is bigger then the right and I have pains behind my eye. My eyes are also unusually dry and eye drops don't help much. I'm 18 years old and I've never had eye problems in the past.

Do you wear glasses or contacts? It sounds like it's time for an eye checkup--with an optometrist, not an optician.

Do you have a yearly check up ( at least) when last has your eyes been examined, not just a vison test?