Canada’s Calgary Herald (8/28, Gray) reported that now that school is back in session, some children may be experiencing vision difficulties that make learning difficult. Calgary optometrist Gaggan Basra, O.D., “says that typically, parents won’t act on getting a child’s eyes checked until a problem is mentioned. While many schools will screen for vision problems, they only check how well a child sees at a distance.” A “comprehensive eye” examination performed by an optometrist, however, includes “tests that can determine nearsightedness, farsightedness, astigmatism, color vision, eye coordination, muscle function, and focusing abilities,” Dr. Basra explained. She also pointed out “some of the signs that indicate a child has a vision problem,” including “difficulty seeing the board at school or TV,” squinting while “reading or watching TV,” holding “reading material close” to the face, frequent headaches, making “letter or number reversals when reading or writing,” using “a finger to keep a place when reading,” achieving “below academic or sporting potential,” closing “one eye while reading,” experiencing “behavioral problems,” or turning “the eye inward, outward, upward or downward.”