There has been a strain sometime; the organ has received a lesion. A Singular Life Elizabeth Stuart Phelps But it is only a symptom, and the mind ought to be directed to the lesion and not to it.
The ultimate treatment of Metatarsal fractures varies depending on the type and location of the fracture. If the fracture is due to direct trauma and the fracture fragments are well aligned then the treatment is immobilisation in a Removable Plastic Cast and non-weight bearing for 6 - 8 weeks.
Other factors can contribute to healing time but usually the eye heals quickly from a simple abrasion. In brief: Quickly. Generally speaking 24-48 hours for the epithelium to heal a corneal abrasion or scratch. Other factors can contribute to healing time but usually the eye heals quickly from a simple abrasion.  In brief: Quickly.