Final answer:
The sensation of floaters in retinal detachment is primarily caused by the extravasation of vitreous humor cells, not by red blood cells, white blood cells, or platelets.
Step-by-step explanation:
The sensation of floaters in patients with retinal detachment is often caused by the extravasation of vitreous humor cells. When the retina detaches, it can lead to the seepage of vitreous humor into areas it does not normally occupy. The resulting shadows cast on the retina from this material are perceived as floaters.
Unlike extravasated blood components such as red blood cells, white blood cells, or platelets, the vitreous humor is transparent, and cells within the vitreous humor are more likely to cause the visual disturbance known as floaters when they enter the visual axis due to retinal injury or detachment.