Nearsightedness signs or symptoms may include: 
Blurry vision when looking at distant objects
The need to squint or partially close the eyelids to see clearly
Headaches
Eyestrain
 Children may have difficulty seeing things on white boards or screen projections in the classroom. Younger children might not express difficulty seeing, but they may have the following behaviors that suggest difficulty seeing: 
Persistently squint
Seem unaware of distant objects
Blink excessively
Rub their eyes frequently
Sit close to the television
 Adults with myopia may notice difficulty reading street signs or signs in a store. Some people may experience blurry vision in dim light, as with nighttime driving, even if they see clearly in daylight. This condition is called night myopia.