The Boston Keratoprosthesis is a device used to treat a variety of eye conditions. Also known as the KPro, it is a type of artificial cornea that is implanted into the eye to replace the damaged or diseased cornea. The KPro can improve vision for individuals who are suffering from severe corneal problems caused by trauma, a viral infection, or other medical conditions. While the term "Boston Keratoprosthesis" is commonly used, there are other synonyms that might be used interchangeably, including artificial cornea, corneal implant, and keratoprosthesis. Regardless of the terminology used, the KPro remains an important medical technology that contributes to the alleviation of suffering in people with serious eye problems.