Eye problem (8)
(Other definitions for cataract that I've seen before include "Cascade; eye defect" , "Waterfall which might be seen in the eye" , "what may have a bad effect on the viewer" , "Force" , "can obstruct your view" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">eye problem</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for stye that I've seen before include "Observer's problem" , "Infected swelling of the eye" , "nasty spot" , "Eyelid problem" , "Climb" .)