Oculo-visual changes and clinical considerations affecting older patients with dementia

Area of Science:

• Ophthalmology
• Neurology
• Geriatrics

Background:

• Dementia, particularly Alzheimer's disease, is linked to diverse ocular and visual impairments.
• Understanding these visual changes is crucial for managing dementia patients.

Purpose of the Study:

• To review oculo-visual problems in five common dementias: Alzheimer's disease, vascular dementia, dementia with Lewy bodies, frontotemporal dementia, and Parkinson's disease dementia.
• To correlate these symptoms with underlying pathological changes.
• To provide clinical guidance for healthcare professionals caring for dementia patients.

Main Methods:

• Literature review of oculo-visual manifestations in dementia.
• Analysis of pathological correlates of visual symptoms.
• Discussion of clinical management strategies.

Main Results:

• Visual disturbances include reduced acuity, color vision deficits, abnormal eye movements, and impaired complex visual functions.
• Pathological changes affect ocular structures from the lens to the visual cortex.
• Clinical issues involve cataract surgery, refractive error correction, falls, and overall eye care.

Conclusions:

• Visual changes in dementia are varied and not diagnostic of specific types.
• Visual hallucinations may indicate dementia with Lewy bodies or Parkinson's disease dementia.
• Eye care professionals must stay informed and adapt practices for dementia patients.