The Most Important Lenses for Photography
The best & most important lens to have... the one that sits on your nose!
Go see your eye doctor for a check up every now and then. Your eyesight is critical for manually focusing, checking DOF and also for post processing properly on the computer. You can have the best most expensive body & lenses but if your eyesight is slightly off, your photos will be too.
As photographers, we spend too much time & money on photo equipment to not pay attention to the health of your eyes.