Memory & Dementia
Lewy body dementia involves changes in thinking together with features such as fluctuating attention, visual hallucinations, parkinsonian movement changes, and acting out dreams during sleep.
Written and medically reviewed by Amarish Dave, DO, board-certified neurologist. This page is educational and does not replace an individual medical evaluation.
Lewy body dementia is a progressive neurological condition that can affect thinking, attention, movement, sleep, perception, and automatic body functions. Symptoms often overlap with both Alzheimer's disease and Parkinson's disease, which is why the full pattern and a careful neurological evaluation matter.
Learn more about hallucinations in dementia and why medication choices require individualized medical supervision.
See a neurologist in person in Crystal Lake, Woodstock, or Lake Geneva—or, when clinically appropriate, schedule a telehealth visit from anywhere in Illinois or Wisconsin. Family members and caregivers may participate when appropriate.
In-person appointments are available at our three office locations in Crystal Lake, Illinois; Woodstock, Illinois; and Lake Geneva, Wisconsin.
Crystal Lake, Illinois
Woodstock, Illinois
Lake Geneva, Wisconsin
Telehealth neurology appointments are available to patients located anywhere in Illinois or Wisconsin. You do not need to live near an office, but you must be physically located in Illinois or Wisconsin at the time of the appointment.
Telehealth may be appropriate for selected neurological evaluations and follow-up care. Some concerns require an in-person neurological examination or testing.
Learn about telehealth neurology →The Illinois Dementia Guide provides free, practical guidance for Illinois families navigating memory concerns, dementia evaluation, caregiving and planning.
Explore the Illinois Dementia Guide →Certain medications, particularly some antipsychotics, can be poorly tolerated in Lewy body dementia. Recognizing the diagnosis changes how symptoms are managed. Recurrent, well-formed visual hallucinations are one reason Lewy body dementia is considered during evaluation, and new or suddenly worse hallucinations should also prompt a search for delirium, infection, medication effects or other acute causes.
Memory & Dementia
Amarish Dave, DO explains why hallucinations can occur in dementia, why they are especially associated with Lewy body dementia, and when a sudden change needs medical evaluation.
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Memory & Dementia
Amarish Dave, DO explains why a person with dementia can have good moments, hours, or days—and why that does not rule out real cognitive change.
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Memory & Dementia
Amarish Dave, DO explains how Leqembi and Kisunla target amyloid, who may qualify, and why biomarker confirmation, MRI monitoring, and individualized risk review matter.
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Memory & Dementia
Amarish Dave, DO shares practical, dignity-centered strategies for scheduled toileting, safer bathroom access, simpler clothing, and recognizing changes that need medical evaluation.
Watch VideoWondering whether a memory change is expected with age? Learn how to distinguish normal aging from possible signs of dementia.
Daily habits are part of a complete care plan. Watch lifestyle and dementia, and learn what dementia risk reduction can—and cannot—promise.
New or worsening behavior symptoms can have several causes. Learn why people with dementia may have hallucinations.
Caregivers can also learn practical ways to manage urinary incontinence in dementia, including scheduled toileting and signs that deserve medical evaluation.
For restlessness, pacing, irritability, or resistance to care, review practical strategies for managing agitation in dementia and recognizing sudden changes that may have a medical cause.
Not every dementia begins with memory loss. Watch what frontotemporal dementia is and normal pressure hydrocephalus.
Choose the scheduling line for the state where you will be located for your appointment.
Available at three office locations:
Crystal Lake, Illinois
Woodstock, Illinois
Lake Geneva, Wisconsin
Telehealth neurology appointments are available to patients located anywhere in Illinois or Wisconsin. You do not need to live near an office, but you must be physically located in Illinois or Wisconsin at the time of the appointment.
Learn about telehealth neurology →Illinois appointments: 815-337-7100. Wisconsin appointments: 262-245-0535.
Our office will confirm whether an in-person or telehealth visit is appropriate and provide the details.
Insurance participation and referral requirements vary by plan. Our office will confirm what your plan requires before your visit.
If you believe you are experiencing a medical emergency, call 911 or seek emergency medical attention.