I have a Mac Air . I now have developed serious eye issues that demand I use a larger monitor. I need advice on what is an affordable monitor I can easily connect to my Mac Air. Also, should I also purchase a larger keyboard while doing this. I am a novice and sometimes do not grasp all the technical issues. I'll try to respond if any clarifications are needed. Essentially, I use my MacAir for general home use but do have a small eBay store so need to be able to use for that and also watch Youtube movies on occasion. Should I consider a curved screen ? Easier on eyes ? Any advice appreciated. Even a used monitor would be fine if I know what to look for. Thank you.