Final answer:
Amiodarone is the drug known for causing whorl keratopathy. Acanthamoeba keratitis is treated with chlorhexidine and polyhexamethylene biguanide. Herpes simplex virus 1 can cause viral keratitis.
Step-by-step explanation:
Among the drugs listed, Amiodarone is known to cause whorl keratopathy, which is a condition where there is the presence of corneal deposits. These corneal deposits appear as whorl-like patterns on the cornea and are associated with this particular medication used for cardiac issues.
Acanthamoeba keratitis, a serious eye infection that can lead to permanent vision loss or blindness, is commonly treated with a combination of chlorhexidine and polyhexamethylene biguanide. It is not related to the drugs mentioned in the question.
Regarding viral causes of keratitis, the herpes simplex virus 1 (HSV-1) is known for its ability to spread to the eye and cause a form of keratitis. This condition, caused by HSV-1, can lead to complications if not treated promptly.