My wife has severe dementia and heavy hallucinations of seeing her mom. Has anyone heard of visual dementia?

Many types of dementia cause hallucinations. Maybe doc was not very clear with the diagnosis? It never hurts to have a second opinion. What sort of doc diagnosed the dementia? For a second opinion I would check a neurologist that specializes in dementia or a geriatric psychiatrist.

I agree with Glad. Many kinds of dementia (probably most, to some extent) include hallucinations and speech problems. A second opinion will probably give you peach of mind. If there is a dementia clinic or a hospital with a well-established dementia department near you, I think that is where I would look for a second opinion.

Why do you bring up Lewy Bodies? Does she have other symptoms that would suggest that type of dementia?

Her doc this is his field and he been doing it for thirty five yrs. 2013 First. MRI should 2% loss right side , MRI in 2017 should 8% calapse no mention of lewy bodies. I have been reading and studying for four yrs on hers I come up with the conclusion it is lewy bodies. Her sister has same thing some dementia's are hereditary. I thank you for your input.

Hi Tsmitty, I commend you on your research into dementia, I know from personal experience that this is extra hard when caring for someone who has/is suffering from dementia.
I do agree though with JeanGibbs that it would be a good idea to seek a second opinion from a well established dementia clinic/hospital department. She is correct in the fact that hallucinations are not the only significant symptom of Lewy Body and this is not the only dementia to produce hallucinations.
For instance My BIL has dreadful visual hallucinations accompanying his dementia but not Lewy Bodies.
I on the other hand do have Lewy bodies and I live with hallucinations that are auditory, olfactory and visual. Sadly these are not the only symptoms that are different from other dementias. As I'm sure you've come across in your research there are also the Parkinson's style movements and our cognitive functions/loss vary from other forms of dementia.
I completely understand your wanting to immerse yourself in knowledge and get a key to this terrible disease that both you and your wife live with, but please seek a second opinion.
I know from both myself and my BIL how important it is to diagnose the correct dementia and treat it accordingly. We've both been previously misdiagnosed and it made life harder.
I would also check for a Urinary Tract Infection, they can produce no obvious symptoms but are often the cause of hallucinations.
If it does turn out to be LB then while I'm stable in mine I'm happy to offer help where I can.