Keyword | CPC | PCC | Volume | Score |
---|---|---|---|---|
rods and cones in eye function | 0.59 | 0.7 | 6776 | 44 |
function of rods and cones in eye | 1.97 | 0.1 | 644 | 62 |
rods and cones in the eye function | 0.56 | 0.8 | 1148 | 92 |
eye rods and cones function | 0.17 | 0.1 | 5742 | 88 |
function of rods and cones in human eye | 1.93 | 0.1 | 255 | 66 |
main function of rods and cones in the eye | 0.81 | 0.2 | 2704 | 62 |
rods and cones function in human eye | 1.89 | 0.6 | 800 | 81 |