6 ▁for ▁a ▁u ve al ▁mel an oma ▁in ▁his ▁right ▁eye . ▁He ▁discussed ▁his ▁loss ▁of ▁s tere os cop ic ▁vision ▁caused ▁by ▁the ▁treatment , ▁which ▁eventually ▁resulted ▁in ▁right - ey e ▁blind ness , ▁in ▁an ▁article ▁and ▁later ▁in ▁his ▁book ▁The ▁Mind ' s ▁E ye . ▁ ▁In ▁January ▁ 2 0 1 5 ▁met ast ases ▁from ▁the ▁oc ular ▁tum our ▁were ▁discovered ▁in ▁his ▁li ver . ▁S acks ▁announced ▁this ▁development ▁in ▁a ▁February ▁ 2 0 1 5 ▁New ▁York ▁Times ▁op - ed ▁piece ▁and ▁estimated ▁his ▁remaining ▁time ▁in ▁" month s ". ▁He ▁expressed ▁his ▁intent ▁to ▁" live ▁in ▁the ▁rich est , ▁deep est , ▁most ▁product ive ▁way ▁I ▁can ". ▁He ▁added : ▁" I ▁want ▁and ▁hope ▁in ▁the ▁time ▁that ▁remains ▁to ▁deep en ▁my ▁friend ships , ▁to ▁say ▁fare well ▁to ▁those ▁I ▁love , ▁to ▁write ▁more , ▁to ▁travel ▁if ▁I ▁have ▁the ▁strength , ▁to ▁achieve ▁new ▁levels ▁of ▁understanding ▁and ▁insight ." ▁ ▁S acks ▁died ▁from ▁the ▁disease ▁on ▁ 3 0 ▁August ▁ 2 0 1 5 ▁at ▁his ▁home ▁in ▁Manh attan ▁at ▁the ▁age ▁of ▁ 8 2 , ▁surrounded ▁by ▁his ▁closest ▁friends . ▁ ▁Bibli ography ▁▁▁▁ ▁A ▁Leg ▁to ▁Stand ▁On ▁( 1 9 8 4 ) ▁( S acks ' s ▁own ▁experience , ▁after ▁his ▁accident ▁in ▁Norway , ▁of ▁losing ▁all ▁aw aren