Discover the world’s highly cited researchers through the AD Scientific Index 2025 Citation Rankings.
These rankings evaluate scientists based on their total and recent citation counts, capturing the breadth and real-time currency of academic recognition. Citation data reveals how widely a scholar’s work is referenced, applied, and extended across diverse disciplines. The rankings are routinely updated to reflect ongoing citation growth, while eliminating distortions from excessive co-authorship and institutional inflation. Premium tools provide access to detailed citation dynamics, unethical citation behavior detection, and field-normalized benchmarking.
* Total Citation Rankings
Rankings

4,379
World Rank

47
Country Rank

9
University
Ranking Based On Selection:
1
Citation Metrics
-
Total87,097
-
Last 6 Years76,389
-
Last 6 Years / Total0.877
* Total Citation Rankings
Rankings

24,352
World Rank

189
Country Rank

4
University
Ranking Based On Selection:
2
Medical and Health Sciences / Ophthalmology
ophthalmology | ocular gerontology | ocular immunopathology | uveitis | prevention of blindnes
ophthalmology | ocular gerontology | ocular immunopathology | uveitis | prevention of blindnes
Citation Metrics
-
Total29,998
-
Last 6 Years11,848
-
Last 6 Years / Total0.395
* Total Citation Rankings
Rankings

52,275
World Rank

527
Country Rank

2
University
Ranking Based On Selection:
3
Medical and Health Sciences / Ophthalmology
refractive surgery | keratoconus | cataract | cornea imaging | biomechanic
refractive surgery | keratoconus | cataract | cornea imaging | biomechanic
Citation Metrics
-
Total17,529
-
Last 6 Years9,236
-
Last 6 Years / Total0.527
* Total Citation Rankings
Rankings

57,509
World Rank

611
Country Rank

15
University
Ranking Based On Selection:
4
Medical and Health Sciences / Ophthalmology
oftalmologia | oncologia ocular | olho | cancer | catarat
oftalmologia | oncologia ocular | olho | cancer | catarat
Citation Metrics
-
Total16,326
-
Last 6 Years6,972
-
Last 6 Years / Total0.427
* Total Citation Rankings
Rankings

58,916
World Rank

633
Country Rank

18
University
Ranking Based On Selection:
5
Medical and Health Sciences / Ophthalmology
Vitreoretinal Surgery | Chromovitrectomy | Anti-VEGF Therapy | Stem Cells for Retinal Diseases | Ocular Pharmacolog
Vitreoretinal Surgery | Chromovitrectomy | Anti-VEGF Therapy | Stem Cells for Retinal Diseases | Ocular Pharmacolog
Citation Metrics
-
Total16,029
-
Last 6 Years5,973
-
Last 6 Years / Total0.373
* Total Citation Rankings
Rankings

67,613
World Rank

8
Country Rank

2
University
Ranking Based On Selection:
6
Medical and Health Sciences / Ophthalmology
Ophthalmology/Retina & Vitreous/Uveitis/Intraocular Tumor
Ophthalmology/Retina & Vitreous/Uveitis/Intraocular Tumor
Citation Metrics
-
Total14,443
-
Last 6 Years5,024
-
Last 6 Years / Total0.348
* Total Citation Rankings
Rankings

82,557
World Rank

1,041
Country Rank

29
University
Ranking Based On Selection:
7
Medical and Health Sciences / Ophthalmology
cornea | superficie ocular | biologia celular | ocular surface | celular biolog
cornea | superficie ocular | biologia celular | ocular surface | celular biolog
Citation Metrics
-
Total12,301
-
Last 6 Years6,323
-
Last 6 Years / Total0.514
* Total Citation Rankings
Rankings

129,134
World Rank

2,071
Country Rank

64
University
Ranking Based On Selection:
8
Medical and Health Sciences / Ophthalmology
Oftalmologia | Epidemiologia | Bioestatística | Oftalmologia Preventiv
Oftalmologia | Epidemiologia | Bioestatística | Oftalmologia Preventiv
Citation Metrics
-
Total8,356
-
Last 6 Years6,011
-
Last 6 Years / Total0.719
* Total Citation Rankings
Rankings

153,715
World Rank

2,689
Country Rank

79
University
Ranking Based On Selection:
9
Medical and Health Sciences / Ophthalmology
Oftalmologia | Epidemiologia | Eletrofisiologia Visual Clínic
Oftalmologia | Epidemiologia | Eletrofisiologia Visual Clínic
Citation Metrics
-
Total7,106
-
Last 6 Years3,356
-
Last 6 Years / Total0.472
* Total Citation Rankings
Rankings

156,834
World Rank

2,799
Country Rank

790
University
Ranking Based On Selection:
10
Citation Metrics
-
Total6,970
-
Last 6 Years2,763
-
Last 6 Years / Total0.396
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* Total Citation Rankings
Rankings

164,108
World Rank

665
Country Rank

31
University
Ranking Based On Selection:
11
Citation Metrics
-
Total6,673
-
Last 6 Years2,098
-
Last 6 Years / Total0.314
* Total Citation Rankings
Rankings

184,968
World Rank

801
Country Rank

37
University
Ranking Based On Selection:
12
Medical and Health Sciences / Ophthalmology
oftalmologia | retina | vision artificial | biologia molecular | cirugia vitreoretinian
oftalmologia | retina | vision artificial | biologia molecular | cirugia vitreoretinian
Citation Metrics
-
Total5,932
-
Last 6 Years2,786
-
Last 6 Years / Total0.470
* Total Citation Rankings
Rankings

202,092
World Rank

4,181
Country Rank

1,114
University
Ranking Based On Selection:
13
Medical and Health Sciences / Ophthalmology
oftalmologia | retinopatia diabética | degeneração macular relacionada a idade | drogas anti-VEGF | cirurgia de retina e vítre
oftalmologia | retinopatia diabética | degeneração macular relacionada a idade | drogas anti-VEGF | cirurgia de retina e vítre
Citation Metrics
-
Total5,420
-
Last 6 Years1,568
-
Last 6 Years / Total0.289
* Total Citation Rankings
Rankings

224,137
World Rank

4,900
Country Rank

125
University
Ranking Based On Selection:
14
Medical and Health Sciences / Ophthalmology
ophthalmology | retina diseases | angiogenesis | stem cel
ophthalmology | retina diseases | angiogenesis | stem cel
Citation Metrics
-
Total4,867
-
Last 6 Years2,277
-
Last 6 Years / Total0.468
* Total Citation Rankings
Rankings

232,358
World Rank

5,154
Country Rank

131
University
Ranking Based On Selection:
15
Medical and Health Sciences / Ophthalmology
Oftalmopatias | procedimentos cirúrgicos oftalmológicos | eye diseases | ophthalmologic surgical procedure
Oftalmopatias | procedimentos cirúrgicos oftalmológicos | eye diseases | ophthalmologic surgical procedure
Citation Metrics
-
Total4,682
-
Last 6 Years1,068
-
Last 6 Years / Total0.228
* Total Citation Rankings
Rankings

274,014
World Rank

6,589
Country Rank

268
University
Ranking Based On Selection:
16
Citation Metrics
-
Total3,907
-
Last 6 Years2,579
-
Last 6 Years / Total0.660
* Total Citation Rankings
Rankings

278,106
World Rank

6,705
Country Rank

1,669
University
Ranking Based On Selection:
17
Citation Metrics
-
Total3,839
-
Last 6 Years2,379
-
Last 6 Years / Total0.620
* Total Citation Rankings
Rankings

284,570
World Rank

6,911
Country Rank

1,707
University
Ranking Based On Selection:
18
Citation Metrics
-
Total3,740
-
Last 6 Years1,651
-
Last 6 Years / Total0.441
* Total Citation Rankings
Rankings

285,045
World Rank

6,928
Country Rank

2
University
Ranking Based On Selection:
19
Citation Metrics
-
Total3,733
-
Last 6 Years735
-
Last 6 Years / Total0.197
* Total Citation Rankings
Rankings

291,044
World Rank

7,148
Country Rank

1,761
University
Ranking Based On Selection:
20
Medical and Health Sciences / Ophthalmology
Oftalmologia | Educação Médica | Educação de Profissões da Saúd
Oftalmologia | Educação Médica | Educação de Profissões da Saúd
Citation Metrics
-
Total3,643
-
Last 6 Years1,148
-
Last 6 Years / Total0.315
* Total Citation Rankings
Rankings

292,505
World Rank

1,577
Country Rank

62
University
Ranking Based On Selection:
21
Medical and Health Sciences / Ophthalmology
Oftalmología | Inmunología Ocular | Cornea | Superficie Ocular y Uveítis
Oftalmología | Inmunología Ocular | Cornea | Superficie Ocular y Uveítis
Citation Metrics
-
Total3,621
-
Last 6 Years1,091
-
Last 6 Years / Total0.301
* Total Citation Rankings
Rankings

297,476
World Rank

7,365
Country Rank

331
University
Ranking Based On Selection:
22
Medical and Health Sciences / Ophthalmology
Retina | oftalmologia | laser | diabete | degeneração macula
Retina | oftalmologia | laser | diabete | degeneração macula
Citation Metrics
-
Total3,550
-
Last 6 Years1,835
-
Last 6 Years / Total0.517
* Total Citation Rankings
Rankings

302,764
World Rank

7,531
Country Rank

1,858
University
Ranking Based On Selection:
23
Citation Metrics
-
Total3,478
-
Last 6 Years1,486
-
Last 6 Years / Total0.427
* Total Citation Rankings
Rankings

324,407
World Rank

8,335
Country Rank

199
University
Ranking Based On Selection:
24
Citation Metrics
-
Total3,203
-
Last 6 Years1,062
-
Last 6 Years / Total0.332
* Total Citation Rankings
Rankings

335,029
World Rank

594
Country Rank

31
University
Ranking Based On Selection:
25
Medical and Health Sciences / Ophthalmology
Ophthalmology | Ocular immunology | Uveitis | Ocular Toxoplasmosis | Toxoplasm
Ophthalmology | Ocular immunology | Uveitis | Ocular Toxoplasmosis | Toxoplasm
Citation Metrics
-
Total3,080
-
Last 6 Years2,168
-
Last 6 Years / Total0.704