What is the defining characteristic of active retinal detachment?

The defining characteristic of active retinal detachment is vitreous traction of the retina. In this condition, the vitreous gel, which fills the inside of the eye, pulls on the retina, leading to its separation from the underlying layers. This mechanical force is often due to changes in the vitreous that can occur with aging or other factors. The traction may lead to a tear or break in the retina, which allows fluid to accumulate beneath the retina, further exacerbating the detachment.

While fluid accumulation is often associated with retinal detachment, it is not the defining characteristic, as fluid can be present in situations where detachment is not yet active or occurring. Chronic deteriorating conditions may describe other types of retinal problems but do not specifically define active retinal detachment. Inflammation of retinal layers, though relevant in certain ocular conditions, is not a primary feature of retinal detachment. Understanding the mechanism of vitreous traction helps in diagnosing and implementing appropriate treatment promptly, as timely intervention can preserve vision.