be awarded. These benefits, at the very least, should approximate the risks they brave on board the vessel every single day.   Accordingly, if serious doubt exists on the company-designated physicians declaration of the nature of a seamans injury and its corresponding impediment grade, resort to prognosis of other competent medical professionals should be made. In doing so, a seaman should be given the opportunity to assert his claim after proving the nature of his injury. These evidences will in turn be used to determine the benefits rightfully accruing to him. Besides, we have consistently ruled that disability is intimately related to ones earning capacity. The test to determine its gravity is the impairment or loss of ones capacity to earn and not its mere medical significance. Permanent total disability means disablement of an employee to earn wages in the same kind of work or work of a similar nature that he was trained for or accustomed to perform, or any kind of work which a person of his mentality and attainment can do. It does not mean state of absolute helplessness but inability to do substantially all material acts necessary to the prosecution of a gainful occupation without serious discomfort or pain and without material injury or danger to life.[20] In disability compensation, it is not the injury per se which is compensated but the incapacity to work.   Although private respondents injury was undeniably confined to his left foot only, we cannot close our eyes, as petitioners would like us to, to the inescapable impact of private respondents injury on his capacity to work as a seaman. In their