Which of the following can cause a corneal abrasion?

A corneal abrasion is a painful injury to the surface of the eye, specifically the cornea, and can occur due to several factors. Direct trauma to the eye, such as being poked or scratched, can certainly result in an abrasion as it disrupts the corneal epithelium. Improper care of contact lenses, such as not cleaning them properly or wearing them for too long, can lead to microscopic tears or localized damage on the corneal surface. Additionally, prolonged exposure to excessive light, such as looking directly at the sun or being in an environment with intense UV exposure, can cause damage to the cornea, albeit indirectly.

Since all of these scenarios can contribute to the development of a corneal abrasion, stating that all of the factors presented can lead to such an injury is accurate and explains why this option encompasses the full range of potential causes. Each cause highlights the importance of protecting the eyes from trauma, maintaining proper hygiene with contact lenses, and taking precautions against excessive light exposure.