**Core Concept**
Retinal detachment is a serious ocular emergency characterized by the separation of the retina from the underlying retinal pigment epithelium (RPE). This separation can lead to vision loss due to the disruption of photoreceptor function and the potential for retinal ischemia.

**Why the Correct Answer is Right**
Retinal detachment often presents with symptoms such as sudden onset of floaters, flashes of light, and a decrease in vision. The primary mechanism of retinal detachment is the accumulation of fluid between the neurosensory retina and the RPE, which can be caused by breaks in the retina (retinal tears or holes) or by the traction exerted by fibrovascular tissue in proliferative diabetic retinopathy. The accumulation of fluid can lead to the separation of the retina from the RPE, resulting in the characteristic features of retinal detachment.

**Why Each Wrong Option is Incorrect**
**Option A:** Retinal detachment can indeed present with a sudden decrease in vision, which is a hallmark feature of this condition.
**Option B:** Retinal detachment can cause a decrease in vision due to the separation of the retina from the RPE, which disrupts photoreceptor function.
**Option C:** Retinal detachment can indeed present with symptoms such as flashes of light, which are caused by the mechanical stimulation of the retina.

**Clinical Pearl / High-Yield Fact**
It's essential to remember that retinal detachment is a medical emergency that requires prompt treatment to prevent permanent vision loss. Early detection and treatment of retinal detachment can significantly improve outcomes.

**Correct Answer: A. None of the above features are characteristic of retinal detachment.**