The evaluation and diagnosis of dry eye is challenging. It’s a multifactorial condition, and reported symptoms aren’t always consistent with ocular surface changes. Generally, diagnosis of dry-eye disease entails patient history and slit-lamp examination, with additional testing performed as needed. According to Stephen Pflugfelder, MD, who’s in practice at Baylor College of Medicine in Houston, it’s important to evaluate both signs and symptoms. “A patient could be a grade 4 from symptoms alone but not really have any signs, or he or she could be a grade 4 with signs but have no symptoms. In either case, treatment should be tailored to the severity, and it will determine how aggressive you want to be and what your options for therapy will be,” he said. Read More