David defeated Goliath (according to the bible): triumph of theweak against the strong and/or the struggle between faith andscience. Please search first, what type of vision is present in aperson that has a tumor compressing the optic chiasm.
Is there a possibility (moving a little bitaway from faith) that Goliath suffered from gigantism (ahypophyseal tumor) producing an excess of growth hormone andcompressing the optic chyasm and could not see where Davidwas??