You are presented with multiple paper abstracts, alongside the associated literature review and chapter titles. Given the provided information, you are going to do a literature review. Please generate a coherent literature review that synthesizes the content, draws connections between different works, highlights major findings, and identifies any gaps in the existing research.

Literature Review Title: Computational Techniques for Eye Movements Analysis towards Supporting Early Diagnosis of Alzheimer's Disease: A Review 
Chapter Title:  Computational and Mathematical Methods in Medicine 3 
1. Abstract of Cited Paper (BIB001):  Alzheimers disease (AD) is the most common form of dementia affecting the growing ageing population today, with prevalence expected to rise over the next 35 years. Clinically, patients exhibit a progressive decline in cognition, memory and social functioning due to deposition of amyloid β (Aβ) protein and intracellular hyperphosphorylated tau protein. These pathological hallmarks of AD are visualised either through neuroimaging, CSF analysis or diagnosed post-mortem. Importantly, neuropathological progression occurs in the eye as well as the brain, and multiple visual changes have been noted in both human and animal models of AD. The eye offers itself as a transparent medium to cerebral pathology and has thus potentiated the development of ocular biomarkers for AD. The use of non-invasive screening such as retinal imaging and visual testing may enable earlier diagnosis in the clinical setting, minimizing invasive and expensive investigations. It also potentially improves disease management and quality of life for AD patients, as an earlier diagnosis allows initiation of medication and treatment. In this review, we explore the evidence surrounding ocular changes in AD and consider the biomarkers currently in development for early diagnosis.

Literature Review:
Examples of these tasks are fixating on a given point  or watching a picture BIB001 . An example of a dependent variable on these studies is the reaction time to perform the given tasks. To examine the research involving eye movements and Alzheimer's disease, we searched in the PubMed© (https://www.ncbi.nlm.nih.gov/pubmed) database with the keywords "Alzheimer's disease" and "Eye movements". The database included 165 articles from 1979 to 2017. From the 165 articles, 14 are review articles and 80 articles are not related to AD; focus on atypical subsets of AD or eye movements are not part of the study. From the 165 results, we found that 71 articles are relevant to the research of oculomotor performance of AD patients. The 19.7% (14 articles) from the relevant articles were published in the last 3 years. This shows that research analyzing eye movements is gaining importance in AD studies. Furthermore, recent research shows that the analysis of oculomotor deficits is useful in early detection of AD and also has the potential to be used to assess disease progression BIB002  . Table 1 shows a summary of the research indexed in PubMed since the last 5 years related to eye movements analysis and AD. The summary includes the references and years, the methods used by the researches, the main findings from the studies and information about the participants, and apparatus if present. In the following sections, we describe and categorize conducted research showing an evolution from early attempts towards more naturalistic scenarios.