Retinal detachment is when the retina peels away from the back wall of the eye. In front of the retina, a clear gel called the vitreous fills the inside cavity of the eye. The vitreous gel liquefies as one ages and may sometimes pull a tear in the retina. The fluid can leak through the tear and cause the retina to separate from the back wall of the eye resulting in a retinal detachment. It is a serious condition that may to lead to vision loss if not treated.