contact lenses history timeline

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
contact lenses history timeline	1.03	0.9	7731	38	31
contact	0.08	0.9	9268	29	7
lenses	1.84	0.2	9455	13	6
history	0.16	0.2	4923	15	7
timeline	0.33	0.1	3791	86	8

Keyword	CPC	PCC	Volume	Score
contact lenses history timeline	1.85	1	9597	89
the history of contact lenses	0.82	1	6867	73
contact lenses invented year	1.85	1	8606	17
when were contact lenses created	0.1	0.4	3585	81
what year were contact lenses invented	1.56	0.5	5176	78
when were contact lenses invented	1.35	1	1105	61
when did contact lenses come out	0.72	1	480	67
how long have contact lenses been around	0.87	0.7	8358	2
when were the first contact lenses made	0.99	0.5	8442	78
when did contact lenses become popular	1.24	0.3	7378	66
what year did contact lenses come out	1.07	0.3	4679	22
history of contact lens ppt	1.5	0.6	9016	39
who created the contact lens	0.44	1	6526	95