Keen sight refers to the ability to see clearly and perceive details with great accuracy. This heightened visual acuity allows individuals to notice subtle differences in color, shape, and movement. It is often associated with certain animals, such as eagles and hawks, which possess exceptional vision that aids in hunting and navigation. In humans, keen sight can be enhanced through various means, including proper eye care and regular vision check-ups. Factors like age, genetics, and overall health can influence visual sharpness. Maintaining a balanced diet rich in vitamins, particularly vitamin A, can also support eye health and improve sight.