Keratoglobus is a rare eye condition in which the cornea bulges outward and becomes thinner. There are a few other terms used to describe this condition, including keratoglobia, globular cornea, and corneal globus. These terms all refer to the same condition but may be used interchangeably depending on the medical professional or context. This condition can potentially cause vision loss and may require treatment, such as special contact lenses or surgery, to manage the corneal shape and prevent further damage. If you experience any vision changes or have concerns about your eye health, it is important to speak with an eye doctor.