Describe the symptoms associated with retinal vein occlusion.

Retinal vein occlusion commonly leads to specific symptoms due to the disruption of blood flow within the retina. The most prominent symptoms include sudden vision loss, which can range from mild to severe depending on the degree and location of the blockage. Patients often report the sudden emergence of floaters, which are shadows or spots in the field of vision caused by blood or other substances leaking into the vitreous cavity.

This option highlights the acute and visual nature of the symptoms associated with retinal vein occlusion, aligning well with the typical presentation seen in clinical practice. Headaches, eye redness, increased sensitivity to light, and prolonged blurry vision without sudden loss do not adequately capture the critical aspects of this condition, which primarily affects vision due to changes in the retinal blood supply.