What are new versus old treatments for eye disorders?

New Generally Better. "eye disorders" is a pretty broad category! we go to residency training for years to learn about all of them and new things are being learned all the time. For each condition, the best (often newest) treatment which has the most success and the least side-effects generally becomes the standard of care for that condition. See an eye doctor for the "best" treatment(s) for you!
Be more specific. Sorry but eye disorders is a rather generic description and encompasses a large variety of conditions. Just what did you have in mind? Common refractive conditions? Presbyopia? Glaucoma? Cataracts? Diabetic retinopathy? Macular degeneration? The more specific our patients are, the better we can help them as individuals as opposed to giving general answers.