Cornell is a small program with great faculty and fellowship match (Wills oculoplastics, UCLA cornea, MEEI glaucoma, etc) but no resident clinic and poor operative experience - you have to do a fellowship to be marketable. The facilities, including the market-price housing, are beautiful and you are busy and autonomous on call.
NYU profits from its relationship with VRM, a world-class retina private practice in midtown east with amazing Tuesday morning rounds and research opportunities. You also have the advantage of training at a county hospital, VA, and private hospital, so the clinical experience is excellent. However, with NSLIJ aquiring MEETH (Manhattan Eye and Ear), the future of that affiliation is questionable (at least as of last year). The fellowship match is hit or miss.