a young student sits in a chair squinting hard while trying to read letters on an eye chart across the room. The student leans forward and covers one eye with their hand, straining to see clearly. The eye chart appears sharp and clear in the foreground but becomes increasingly blurred toward the back where the student sits. A school nurse stands nearby holding a pointer, watching the student struggle to identify the distant letters. Other students wait in line, some wearing glasses and reading the chart easily. nearsightedness where distant objects appear blurred while close objects remain clear