If someone is short-sighted about something, or if their ideas are short-sighted, they do not make proper or careful judgments about the future. Environmentalists fear that this is a short-sighted approach to the problem of global warming + short-sightedness short-sightedness The government now recognises the short-sightedness of this approach
If you are short-sighted, you cannot see things properly when they are far away, because there is something wrong with your eyes. Testing showed her to be very short-sighted. long-sighted + short-sightedness short-sightedness Radical eye surgery promises to cure short-sightedness