The term 'person lacking foresight' can be summarized as 'myope'. Myopia, or nearsightedness, is a condition in which a person has difficulty seeing objects that are far away. It is caused by the shape of the eye, which causes light to focus incorrectly on the retina. People with myopia have difficulty seeing distant objects clearly, but can see nearby objects clearly. Myopia can be corrected with glasses, contact lenses, or surgery.