Dr. Ellenberg was knowledgeable and able to answer questions - plus, he was cheerfully willing. I only had a few minutes with him directly, but they were used well. I got the answer to my current health needs, and clearly knew what to watch for in the future. Additionally, I remembered one last question Id forgotten earlier, and happened to see him in the hall - again, he was cheerfully willing to answer, and I left understanding my eye health and future needs in a much clearer big picture way. Bring your questions written down - your time with the Dr. will feel brief, but if youre ready to use it well, hes ready to be an excellent resource. Highly recommend.