So does this mean that larger the eye lens shorter the focal length and shorter the eye lens larger the focal length?
Hello!
Our eye keeps adjusting in accordance to the distance of the object in front of it. The accommodation happens in such a way that the eye lens changes its thickness (and shape) and thus its focal length.
Coming to the point...
Yes, you are absolutely right. The larger the eye lens shorter the focal length and shorter the eye lens larger the focal length.