Nausea and vomiting and occasional toxicity, while upsetting and embarrassing at times, were far less important to me than lithium’s effect on my ability to read, comprehend, and remember what I read. In rare instances, lithium causes problems of visual accommodation, which can, in turn, lead to a form of blurred vision. It also can impair concentration and attention span and affect memory. Reading, which had been at the heart of my intellectual and emotional existence, was suddenly beyond my grasp.
