Hodges' model suggests there are potentially four;
five even if we include the spiritual domain.
A benefit of using Hodges' model* is that just as in normal vision our two eyes overlap and compensate for the blind spots; so attention paid to just one additional care domain may diminish the impact of care domain blindness.
3 out of 4 domains - is better (more holistic) than - 2 out of 4.
The problem in health and social care, is that any one of four blind spots (ironically the site of the optic nerve bundle) can become a fuse for trouble or disaster.
If you have the gift of vision - best to use it.#
*cognitively or deliberately on paper or computer
Image source with many thanks: John Eric Hughes
Visual acuity: http://en.wikipedia.org/wiki/Visual_acuity
Accessibility resources: Intrapersonal domain links page (scroll down).
#Wish I had and could do that!