id	keyword
bam-10781	presbyopia
bam-10781	treatment
bam-10781	pharmacological
bam-10781	vision
bam-10781	eye
bam-10781	doi
bam-10781	pilocarpine
bam-10781	drops
bam-10781	internet
bam-10781	study
bam-10781	lens
bam-10781	agents
bam-10781	apr
bam-10781	near