Instruct: Classify Amazon reviews into positive or negative sentiment
Query: this book opened my eyes!

By the originator of the Bates Method, this book is a must-have for anyone who wants to see their world more clearly. Although the original book was published in 1940, the information is still cutting edge in today's technology. His theory that stress creates vision problems is supported by recent scientific medical research that stress creates the majority of illness and disease upon our planet today. His simple techniques for relieving eye-related stress take only a few minutes yet the results can be quite amazing. After practicing the Palming technique, my eyes feel rested and I see more clearly. Blurred vision dissipates.