title: Tackling the dropped nucleus.
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D006801:Humans; D007906:Lens Subluxation / Q000209:etiology / Q000601:surgery*; D008875:Middle Aged; D018918:Phacoemulsification / Q000009:adverse effects; D014821:Vitrectomy