eye chart vs graph

eye chart and graph both are nouns.

Word	Noun	Adjective	Verb	Adverb
eye chart	Yes	No	No	No
graph	Yes	No	Yes	No

As nouns, graph is a hypernym of eye chart; that is, graph is a word with a broader meaning than eye chart:

eye chart: a chart that is read from a fixed distance; used as a test of vision
graph: a visual display of information

Other hypernyms of eye chart include chart.

eye chart (noun)	graph (noun)
a chart that is read from a fixed distance; used as a test of vision	a visual representation of the relations between certain quantities, represented as points, plotted with reference to a set of axes
	a visual display of information
	a written symbol that is used to represent speech

eye chart (verb)	graph (verb)
	represent by means of a graph
	plot upon a graph