What are the titles of the papers on Eye lenses that were published in IEEE/RSJ International Conference on Intelligent Robots and Systems in 1993?
In IEEE/RSJ International Conference on Intelligent Robots and Systems in 1993, what are the titles of the papers on Eye lenses?
SELECT DISTINCT ?answer WHERE { <https://dblp.org/rec/conf/iros/BasuL93> <https://dblp.org/rdf/schema#publishedIn> 'IROS' . <https://dblp.org/rec/conf/iros/BasuL93> <https://dblp.org/rdf/schema#yearOfPublication> '1993' . <https://dblp.org/rec/conf/iros/BasuL93> <https://dblp.org/rdf/schema#title> ?answer }
<https://dblp.org/rec/conf/iros/BasuL93>