Final answer:
The herpes simplex virus 1 (HSV-1) can spread to the eye to cause a form of keratitis known as herpes or herpetic keratitis, which affects the cornea and can lead to severe symptoms and complications.
Step-by-step explanation:
Among the options given for the virus that can spread to the eye to cause a form of keratitis, the correct answer is b) herpes simplex virus 1 (HSV-1). Herpes simplex virus 1 is known to cause herpes keratitis or herpetic keratitis, which affects the conjunctiva and cornea. This condition can lead to symptoms such as irritation, excess tears, and light sensitivity, as well as deep lesions in the cornea that may result in blindness. Although other viruses, like adenoviruses, can also affect the eye causing viral conjunctivitis, only HSV-1 is associated with this particular form of keratitis among the options listed.