Loss of Vision
Early treatment is essential if shingles develop close to the eye. Ophthalmic herpes zoster, sometimes known as shingles in the eye, can result in scarring or visual loss. One or both eyes are involved in about 10 to 20 percent of all shingles cases.
Dementia
The same vascular injury that can impair blood flow to the brain and result in a stroke can also have a distinct impact on brain function. Dementia [5] risk is increased by shingles because it increases the likelihood of brain blood vessel inflammation.
According to a 2017 study, older persons with eye shingles had a roughly threefold higher risk of dementia than their contemporaries without shingles, even when heart disease and other illnesses or risk factors are taken into consideration.