Which of the following is NOT an ocular side effect often associated with Herpes Zoster?

Dendritic keratitis is primarily associated with Herpes Simplex Virus (HSV) infections, particularly the herpes simplex keratitis that creates dendritic ulcers on the cornea. In contrast, Herpes Zoster (shingles), which is caused by the reactivation of varicella-zoster virus (VZV), is associated with other specific ocular manifestations.

The ocular side effects commonly related to Herpes Zoster include follicular conjunctivitis, acute retinal necrosis, and optic neuritis. Follicular conjunctivitis can occur as a result of VZV affecting the conjunctival tissue. Acute retinal necrosis is a serious condition stemming from VZV, causing retinal damage alongside other complications. Optic neuritis, although less common, can also occur due to inflammation of the optic nerve following VZV infection.

Thus, dendritic keratitis is not an ocular complication of Herpes Zoster, making it the correct answer for the question posed. This differentiation is crucial in understanding the distinct pathology between infections caused by herpes simplex and herpes zoster viruses.