What diagnostic term is used when a patient's chief complaints are "tired eyes and fatigue" when describing symptoms?

The diagnostic term that describes symptoms such as "tired eyes and fatigue" is asthenopia. This condition is often associated with visual strain and discomfort stemming from prolonged use of the eyes, especially during tasks that require intense focus like reading or using a computer. Asthenopia can lead to feelings of tiredness in the eyes and general fatigue, which aligns perfectly with the chief complaints mentioned.

While other conditions, such as strabismus, myopia, and presbyopia, are all eye-related, they do not specifically encompass the general symptoms of eye fatigue and tiredness as effectively as asthenopia. Strabismus refers to misalignment of the eyes, myopia is nearsightedness, and presbyopia is the age-related difficulty in focusing on close objects. None of these conditions directly link to the sensation of tiredness experienced when focusing for extended periods, making asthenopia the most appropriate term to describe the patient's symptoms.