Symptoms of<unk>  begin to develop during the early adolescent years, and symptoms progress as time passes. In the years before then, there is generally no indication of the presence of the disease, though in a few cases, the disease presents as a learning disorder around 5 years of age. In extremely rare cases, symptoms may not show at all until as late as the 3rd decade of life, though these cases have slower progression than typical LD. The most common feature of<unk>  is seizures that have been reported mainly as occipital seizures and myoclonic seizures with some cases of generalized tonic-clonic seizures, atypical absence seizures, and atonic and complex partial seizures. Other symptoms common with the seizures are drop attacks, ataxia, temporary blindness, visual hallucinations, and a quickly-developing and dramatic dementia. Other common signs and symptoms associated with<unk>  are behavioral changes due to the frequency of seizures. Over time those affected with<unk>  have brain changes that cause confusion, speech difficulties, depression, decline in intellectual function, impaired judgement and impaired memory. If areas of the cerebellum are affected by seizures, it is common to see problems with speech, coordination, and balance in<unk>  patients. For dogs that are affected with<unk> , common symptoms are rapid shuddering, shaking, or jerking of the canine's head backwards, high pitched vocalizations that could indicate the dog is panicking, seizures, and as the disease progresses dementia, blindness, and loss of balance. Within ten years of developing symptoms, life expectancy has known to go down. People who advance to adulthood tend to lose their ability to do daily tasks by themselves, which can lead them to having to have comprehensive care. If their symptoms have become onset extremely fast or at an early age, comprehensive care allows one to get treatment in ways that are not only regarding receiving their medication, but it also includes both physical and mental health towards the daily activities that one would normally perform by themselves.
Lafora disease
Batten disease
Farber disease
Akureyri disease
Leber congenital amaurosis
Bayoud disease
Spastic ataxia-corneal dystrophy syndrome
Degos disease