Does using golden kohl for the eyes strengthen eyesight, and is it permissible to use it Islamically?

It is forbidden to use gold and silver utensils for eating and drinking, based on the Prophet's (peace be upon him) saying: "Do not drink in vessels of gold and silver, nor eat in their plates, for they are for them [the disbelievers] in this world and for you in the Hereafter," and his saying: "He who eats and drinks in vessels of gold and silver is only gurgling the fire of Hell in his stomach." As for applying kohl with a gold or silver stick, it is permissible out of necessity, and it has been mentioned that it brightens and strengthens the eyes and benefits them against diseases.