Rhegmatogenous retinal detachments are the most common type. These develop from holes or tears in the retina that allow fluid to pass through and collect under the retina. Retina tears develop as the vitreous gel inside the eye separates from the retina as part of aging or in patients with thin patches of retina known as lattice degeneration. Infrequently they can be associated with trauma.
The most common risk factors for this type of retinal detachment are lattice degeneration (thin patches in the retina), high myopia (being very near-sighted) and a history of prior retinal detachment.
Tractional retinal detachments develop when scar tissue grows over the surface of the retina and pulls the retina from the back wall of the eye. This type of detachment is less common and usually associated with diabetic retinopathy.
Exudative retina detachments are caused by retinal diseases including inflammatory disorders or injury/trauma to the eye. In this type, fluid leaks under the retina causing it to detach, but no holes or tears are present.