Citation Rankings (Highly Cited Researchers) and the list of the most cited and influential researchers cover a wide range of scientific fields, spanning 197 main and sub-disciplines, as well as the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings, offering a unique service. Additionally, the list without CERN, Statistical Data, etc., provided exclusively by “AD Scientific Index”, is part of our effort to balance the situation created by CERN and researchers with statistical data, who have an advantage over others, especially those in the social and humanities fields. There should be new regulations for multi-author and CERN papers. Citation lists also reveal many rule violations and unethical practices. See also for more specific citation analyses: Scientists Last 6 years Citation Index, Universities Total Citations Rankings 2025 and Universities Last 6 Years Citations Rankings 2025
* Total Citation Counts Rankings
Ranking Based On Selection :1
Optometry
Ocular Pharmacology
Vision Science
Ocular Health
IPC in Eye Care
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,687
1,325
0.785
* Total Citation Counts Rankings
Ranking Based On Selection :2
macular pigment
clinical trial
age-related macular degeneration
epidemiology
nutrition
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,310
835
0.637
* Total Citation Counts Rankings
Ranking Based On Selection :3
Contact lens
Research Methods
Public Health
Primary Care Optometry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
443
342
0.772
* Total Citation Counts Rankings
Ranking Based On Selection :4
Binocular Vision
Orthoptics and Vision Therapy
Public Health Optometry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
263
202
0.768
* Total Citation Counts Rankings
Ranking Based On Selection :5
Refractive Errors
Physiological Optics of the Eye
Optics of Dispensing
Aniseikonia and anterior
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
168
123
0.732
* Total Citation Counts Rankings
Ranking Based On Selection :6
Optometry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14
14
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :7
Binocular vision
paediatrics
primary eye care
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13
13
1.000
Samuel Kyei
University of Cape Coast
Cape Coast, Ghana
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,687
1,325
0.785
Optometry
Ocular Pharmacology
Vision Science
Ocular Health
IPC in Eye Care
Kwadwo Owusu Akuffo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,310
835
0.637
macular pigment
clinical trial
age-related macular degeneration
epidemiology
nutrition
Ilechie Alex Azuka
University of Cape Coast
Cape Coast, Ghana
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
443
342
0.772
Contact lens
Research Methods
Public Health
Primary Care Optometry
Mohammed Abdul-Kabir
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
263
202
0.768
Binocular Vision
Orthoptics and Vision Therapy
Public Health Optometry
AbdulSadik Ahmed
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
168
123
0.732
Refractive Errors
Physiological Optics of the Eye
Optics of Dispensing
Aniseikonia and anterior
Naa Adjeley Addo
University of Cape Coast
Cape Coast, Ghana
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14
14
1.000
Emmanuel Owusu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13
13
1.000
Binocular vision
paediatrics
primary eye care