Keyword Analysis & Research: what causes the pupil to become smaller

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
what causes the pupil to become smaller	0.94	1	8759	93	39
what	1.56	0.9	2061	57	4
causes	1.93	1	2544	53	6
the	1.44	0.1	6461	6	3
pupil	1.72	0.6	6357	26	5
to	0.31	1	9652	7	2
become	1.25	0.5	5614	38	6
smaller	0.34	0.3	1470	67	7

Keyword	CPC	PCC	Volume	Score
what causes the pupil to become smaller	1.09	1	7596	6
what causes eye pupils to get smaller	1.47	0.1	4271	52
what makes the pupil larger or smaller	1.5	0.8	2423	90
what causes the pupil to change size	0.19	0.9	2608	55
what causes one pupil to be larger	0.17	0.8	298	17
what causes pupils to be so small	1.23	0.1	8138	76
when pupils get smaller	1.23	0.9	9952	76
why do my pupils stay small	0.19	0.5	8070	64