Strongest force of bonding b/w retina and RPE -

The interphotoreceptor matrix (IPM) is a highly organized structure with interconnected domains surrounding cone and rod photoreceptor cells and extends throughout the subretinal space. Based on known roles of the extracellular matrix in other tissues, the IPM is thought to have several prominent functions including serving as a receptor for growth factors, regulating retinoid transpo, paicipating in cytoskeletal organization in surrounding cells, and regulation of oxygen and nutrient transpo