Glossy surfaces can give both specular and diffuse reflection. Reflections can be divided into two types&colon; specular reflection and diffuse reflection. Reflected light can be divided into two sub-types, specular reflection and diffuse reflection. Most real objects have some mixture of diffuse and specular reflective properties. Diffuse interreflection specifically describes light reflected from objects which are not shiny or specular. The basic mathematical relationship which describes specular reflectivity is fairly straightforward. Many common materials exhibit a mixture of specular and diffuse reflection. Light reflects from smooth surfaces by specular reflection. In practice, surfaces are assumed to reflect in a perfectly specular or diffuse manner. Variations in surface texture directly influence the level of specular reflection. Specularity is the visual appearance of specular reflections. In a specular reflection, the angles of reflection and incidence are equal. It involves measuring the polarization state of light following specular reflection from such a surface. A bright zone of specular reflection will be evident on the temporal, midperipheral corneal epithelium. This refers to elastic scattering rather than to a specular reflection.