the actual verse is "......and your sight today is IRON", ofcourse one translation says sharp/clear(instead of iron) but you will find other english translations which uses IRON, it literally says in arabic ......IRON at the end, "your sight today is IRON".
so iron improves your eye-sight/vision , as explained in that video link i posted earlier.
well you came close.....
as of 'today' , "we have removed your veil/cover and today ...... "it means when you die or on day of judgment, what is hidden ( i.e heaven/hell/Djinn/angels etc...) are uncovered for you to see with 100% good vision/sight. God used Iron, so reading this some conclude iron is related to eye sight and so through science we find iron is good for your eyes.
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