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Academician

NİHAT SAYIN

Profesör

Sağlık Bilimleri Üniversitesi İstanbul Kanuni Sultan Süleyman Sağlık Uygulama Ve Araştırma Merkezi Cerrahi Tıp Bilimleri Bölümü

Research topics OpenAlex
  1. Ana Dal Sağlık Bilimleri Temel Alanı
  2. Yan Dal Göz Hastalıkları
Articles 78 YÖKSİS 78 · OpenAlex 0 Total citations 356 h-index 8 · OpenAlex OpenAlex coverage %18 matched 15 / 84 Q1 articles 15 Scopus · WoS Q1 5 Best field rank #2,858 / 39,749 Main field · top 7.2% Co-authors 121 21 Turkish institutions

Citation impact

Citation counts of the articles matched in OpenAlex, citing publications from Crossref and the Stanford/Elsevier list. Sources are shown separately and never added up.

OpenAlex YÖKSİS articles matched in OpenAlex: 15 + YÖKSİS · co-author record: 10
h-index 8 Percentile in Türkiye: 67 #636 of 1,492 at their university by h-index
i10-index
7
Total citations
356
Top 25% in Türkiye
Per article
14.2
FWCI
1.24
1.00 = world average
World top 1%
0
World top 10%
3

Most cited articles

  1. Choroidal Thickness Changes after a Single Administration of Coffee in Healthy Subjects 2014 world top 10% 113 citations
  2. Evaluation of Subfoveal Choroidal Thickness in Pregnant Women Using Enhanced Depth Imaging Optical Coherence Tomography 2014 world top 10% 63 citations
  3. Subfoveal Choroidal Thickness in Preeclampsia: Comparison with Normal Pregnant and Nonpregnant Women 2013 53 citations
How is this computed?

h-index and citations are computed from the citation counts of this academic’s YÖKSİS articles matched in OpenAlex (not Google Scholar, WoS or Scopus). Unmatched articles are not included. 10 articles (147 citations) tagged with this academic’s YÖK author id in co-authors’ YÖKSİS records count only towards citations, h-index and i10; article counts, percentiles and rankings use their own YÖKSİS list.

Citing publications Crossref 281 publications citing 62 DOI-bearing articles · 39 Türkiye-affiliated
  • 2018 5
  • 2019 61
  • 2020 72
  • 2021 106
  • 2022 15
  • 2023 1
  • 2024 1
  • 2025 18
  • 2026 2
  1. DOI 10.1016/j.exer.2025.110795 2026
  2. DOI 10.1016/j.bspc.2025.108946 2026
  3. Evaluation of serum YKL-40 and Galectin-3 as predictive biomarkers for proliferative vitreoretinopathy in rhegmatogenous retinal detachment: a prospective comparative study TR Nurullah Koçak et al. · BMC Ophthalmology · 2025
  4. DOI 10.5772/intechopen.1012887 2025
  5. DOI 10.1007/s00415-025-13560-9 2025
  6. DOI 10.1016/j.jaapos.2025.104697 2025
  7. DOI 10.1016/j.cpha.2025.11.002 2025
  8. DOI 10.4103/joco.joco_120_24 2025
  9. DOI 10.3390/jcm14228177 2025
  10. DOI 10.3892/ijmm.2025.5683 2025
  11. DOI 10.1038/s41598-025-23462-5 2025
  12. DOI 10.3389/fmed.2025.1711567 2025
  13. DOI 10.1038/s41598-025-30875-9 2025
  14. DOI 10.3390/jcto3040024 2025
  15. DOI 10.1177/03000605251389806 2025
  16. DOI 10.4103/djo.djo_27_25 2025
  17. DOI 10.1038/s41598-025-21628-9 2025
  18. DOI 10.3390/diagnostics15243104 2025
  19. DOI 10.21203/rs.3.rs-7852414/v1 2025
  20. DOI 10.1093/jscr/rjaf868 2025
  21. How is the posterior ocular segment affected in cesarean section and normal vaginal delivery? TR Mehmet Icoz et al. · Indian Journal of Ophthalmology · 2024
  22. DOI 10.1016/b978-0-323-82753-9.00012-6 2023
  23. Blood and aqueous humor phoenixin, endocan and spexin in patients with diabetes mellitus and cataract with and without diabetic retinopathy TR Fatih Celik et al. · Peptides · 2022
  24. Acute Effects of Coffee on Peripapillary and Subfoveal Choroidal Parameters in Young Healthy Subjects TR Nurullah Koçak et al. · European Journal of Ophthalmology · 2022
  25. Changes in the macular choroidal thickness of children who have type-1 diabetes mellitus, with and without vitamin D deficiency TR Gozde Aksoy Aydemir et al. · International Ophthalmology · 2022
  26. DOI 10.1038/s41598-022-06240-5 2022
  27. DOI 10.3390/medicina58030408 2022
  28. DOI 10.1016/j.ajo.2021.09.018 2022
  29. DOI 10.3390/jcm11020325 2022
  30. DOI 10.1016/j.jcjo.2021.03.012 2022

Showing the 30 most recent.

Where does this list come from?

Extracted from the reference lists in Crossref’s public March 2026 data file; 20.3% of the file has been processed, so the list may be incomplete. Crossref citations are never added to or compared with the OpenAlex citation counts; the two sources have different coverage.

Field ranking

Position in the main-field, side-field and keyword cohorts by YÖKSİS article score; each card opens that ranking.

YÖKSİS ?

Works 78

YÖKSİS and OpenAlex records: index distribution, journals published in, a filterable article list and the other output types.

Indexes and citation percentiles

?
TR Index 20 articles
OpenAlex citation percentile
Top 1%0
Top 10%1
Avg · n 15 %55.2
Other counts

Scopus (SJR)

  • YÖKSİS rows 62

WoS (JCR)

  • Best Q 56 Q1 5 Q2 12 Q3 23 Q4 16
  • YÖKSİS rows 65

Articles

Articles with YÖKSİS and OpenAlex source split; narrow by quartile or TR Index.

78articles

Journals with publications

45 journals

Narrow down

Scopus (SJR)
Q115 Q227 Q38 Q43
WoS (JCR)
Q15 Q213 Q323 Q416
TR Index
20articles

Article list

  1. 2025 Relationship of retinal zone and plus severity with the requirement of re-treatment in bevacizumab-treated eyes for retinopathy of prematurity Ophthalmic Research DOI 10.1159/000544710 YÖKSİS SJR Q1 JCR Q3
  2. 2025 Detection of Plus Disease in Retinopathy of Prematurity Using Deep Learning Models: Evaluating Vision Transformers and ResNet Architectures International Journal of Imaging Systems and Technology DOI 10.1002/ima.70174 YÖKSİS SJR Q2 JCR Q2
  3. 2025 Serum adropin and miR-21 expression as predictors of endothelial dysfunction in type 2 diabetes mellitus and vascular complications Scientific Reports DOI 10.1038/s41598-025-20873-2 YÖKSİS
  4. 2025 Effect of methotrexate in preventing retinal detachment after proliferative vitreoretinopathy surgery: A systematic review and meta-analysis Survey of Ophthalmology DOI 10.1016/j.survophthal.2025.09.015 YÖKSİS SJR Q1 JCR Q1
  5. 2025 Corneal epithelial thickness in pseudoexfoliation syndrome: an anterior segment optical coherence tomography study International Ophthalmology DOI 10.1007/s10792-025-03904-9 YÖKSİS SJR Q2 JCR Q3
  6. 2025 Clinical characteristics and treatment response of treatment requiring retinopathy of prematurity (ROP) in Big Premature Infants in Turkiye: BIG-ROP Study Group Report No 2 (BIG-ROP STUDY) BMJ Open Ophthalmology DOI 10.1136/bmjophth-2024-002081 YÖKSİS SJR Q1 JCR Q2
  7. 2025 Quantitative evaluation of the wide-field fundus photographs in eyes with severe stage 3 and stage 4A retinopathy of prematurity BMC Ophthalmology DOI 10.1186/s12886-025-03869-4 YÖKSİS
  8. 2025 Comparative analysis of pupillometry in two scheimpflug-based measurement systems Documenta Ophthalmologica DOI 10.1007/s10633-025-10048-9 YÖKSİS SJR Q2 JCR Q3
  9. 2025 Corneal endothelial and retinal microvascular changes in pseudoexfoliation syndrome: insights from specular microscopy and OCT angiography BMC Ophthalmology DOI 10.1186/s12886-025-04033-8 YÖKSİS SJR Q2 JCR Q3
  10. 2025 Internal Drainage of Subretinal Fluid Using 25/32 Gauge Cannula in Eyes with Rhegmatogenous Retinal Detachment Turkish Journal of Ophthalmology DOI 10.4274/tjo.galenos.2025.20050 YÖKSİS TR Index SJR Q2 JCR Q3
  11. 2024 Integration of Optical Coherence Tomography Images and Real‐Life Clinical Data for Deep Learning Modeling: A Unified Approach in Prognostication of Diabetic Macular Edema Journal of Biophotonics DOI 10.1002/jbio.202400315 YÖKSİS SJR Q2 JCR Q3
  12. 2023 Quantitative Evaluation of Progression of Retinal Vascularization After 60 Weeks Postmenstrual Age in Infants Treated With Bevacizumab Ophthalmic Surg Lasers Imaging Retina DOI 10.3928/23258160-20230626-01 YÖKSİS SJR Q2 JCR Q3
  13. 2023 Results of anti-VEGF treatment for neovascular AMD in eyes with different baseline visual acuity in Turkish population-based on real life data-Bosphorus retina study group Photodiagnosis and Photodynamic Therapy DOI 10.1016/j.pdpdt.2023.103640 YÖKSİS SJR Q2 JCR Q2
  14. 2023 A quantitative sonoelastography evaluation of ocular and periocular elasticity after intravitreal ranibizumab injection Elsevier BV DOI 10.1016/j.jfo.2023.03.016 YÖKSİS SJR Q3 JCR Q3
  15. 2023 Extraretinal Fibrovascular Proliferation in a Neonate Possibly Associated with an <i>ESAM</i> Gene Variant Turkish Journal of Ophthalmology DOI 10.4274/tjo.galenos.2023.72609 YÖKSİS TR Index SJR Q2 JCR Q3
  16. 2023 Based on the Real-Life Data of Turkey; Comparison of Anatomical and Functional Outcomes of Phakic and Pseudophakic Patients in Wet Type Age-Related Macular Degeneration Kare Publishing DOI 10.14744/bej.2023.69782 YÖKSİS TR Index SJR Q3 JCR Q4
  17. 2022 Tono-pen and Schiotz tonometer measurements in gas-filled eyes Journal français d’ophtalmologie DOI 10.1016/j.jfo.2022.03.008 YÖKSİS SJR Q3 JCR Q4
  18. 2022 Fluorescein Angiography Findings in Treatment-Naive Premature Infants with Retinal Vascular Immaturity and Persistent Avascular Retina Seminar in Ophthalmology DOI 10.1080/08820538.2022.2085518 YÖKSİS SJR Q2 JCR Q4
  19. 2022 Relationship between refractive outcomes and quantitative retinal vascularization and severity of plus disease in eyes treated with intravitreal bevacizumab Indian Journal of Ophthalmology DOI 10.4103/ijo.IJO_243_22 YÖKSİS SJR Q2 JCR Q2
  20. 2022 Factors associated with refractive outcome in children treated with bevacizumab for retinopathy of prematurity: the importance of retinal vascularization International Ophthalmology DOI 10.1007/s10792-022-02321-6 YÖKSİS SJR Q2 JCR Q4

Books 15 See all (15) →

  1. 2025 Yaşlı Fizyolojisi Orient Yayınları ISBN 978-625-5976-63-5 Kitap Bölümü · Bilimsel Kitap
  2. 2024 Blindness Nobel Medicus ISBN 9786053359869 Kitap Bölümü · Bilimsel Kitap
  3. 2024 Blindness Nobel Medicus ISBN 9786053359869 Kitap Bölümü · Bilimsel Kitap
  4. 2024 SAĞLIKLI YAŞAMDA FONKSIYONEL BESINLER CILT 1 Orient Yayınları ISBN 978-625-5976-05-5 Kitap Bölümü · Bilimsel Kitap
  5. 2024 Küçük Kesili Vitrektomi İçin Pratik El Kitabı ESSE ISBN 978-625-99408-3-0 Kitap Bölümü · Kitap Tercümesi

Proceedings 88 See all (88) →

  1. 2021 Comparison of refractive outcomes in infants whose one eye was treated with bevacizumab and fellow eye regressed spontaneously Euroretina 2021 virtual abstract
  2. — Prematürite retinopatisinde primer ve sekonder lazer uygulanan gözlerde uygulama ve türü ve haftasının refraksiyon sonuçları üzerine etkisi TOD 17. Mart Sempozyumu
  3. — Inter-eye comparison of retinal vascular growth rate and angiographic findings following unilateral bevacizumab treatment Euroretina 2021 virtual abstract
  4. — Tip 1 ve agresif posterior prematürite retinopatisinde retinal zon ve plus şiddetinin kantitatif ve subjektif olarak sıralı olarak ölçeklendirilmesi TOD Sanal 43. bahar sempozyumu
  5. — The Effect of Intravitreal Bevacizumab Dose on Retinal Vascular Progression in Retinopathy of Prematurity Euroretina 2021 virtual abstract

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Collaboration network

From the author lists of YÖKSİS publication records. Duplicate records of a work count once; institutions are co-authors’ current YÖKSİS affiliations.

Co-authors
121
With an akaturk profile
42
Turkish institutions
21
Co-authored works
%100

Academic co-authors 42

  1. SADIK ETKA BAYRAMOĞLU Doçent · Sağlık Bilimleri Üniversitesi same university 37
  2. NECİP KARA Profesör · Gaziantep Üniversitesi 18
  3. DİLBADE YILDIZ EKİNCİ Doçent · Sağlık Bilimleri Üniversitesi same university 13
  4. HASAN ALTINKAYNAK Doçent · Sağlık Bilimleri Üniversitesi same university 12
  5. İBRAHİM KOÇAK Profesör · Sağlık Bilimleri Üniversitesi same university 9
  6. DİLARA PİRHAN Doçent · Kocaeli Üniversitesi 7
  7. ERDEM ERİŞ Doçent · Sağlık Bilimleri Üniversitesi same university 5
  8. MUSTAFA GÜRKAN ERDOĞAN Profesör · İstanbul Üniversitesi 5
  9. SERPİL AKAR Profesör · Başkent Üniversitesi 5
  10. İSMAİL UMUT ONUR Doçent · Tekirdağ Namık Kemal Üniversitesi 5
Show all (42)
  1. ALİ DEMİRCAN Profesör · İstanbul Medipol Üniversitesi 4
  2. ASLI VURAL Profesör · Sağlık Bilimleri Üniversitesi same university 4
  3. HALİL ÖZGÜR ARTUNAY Profesör · Sağlık Bilimleri Üniversitesi same university 4
  4. HAVVA KALDIRIM Doçent · Sağlık Bilimleri Üniversitesi same university 4
  5. SELİM BÖLÜKBAŞI Doçent · Kocaeli Sağlık Ve Teknoloji Üniversitesi 4
  6. MEHMET DEMİR Öğretim Görevlisi (ders Vermekle Görevli) · Karadeniz Teknik Üniversitesi 3
  7. MERİH ÇETİNKAYA Profesör · İstanbul Atlas Üniversitesi 3
  8. SELİN ÜSTÜN BEZGİN Doçent · Sağlık Bilimleri Üniversitesi same university 3
  9. AHMET EKİZOĞLU Doktor Öğretim Üyesi · Karabük Üniversitesi 2
  10. HASAN ÖNAL Profesör · Sağlık Bilimleri Üniversitesi same university 2
  11. LUKMAN THALIB Profesör · Yıldız Teknik Üniversitesi 2
  12. NURAY AKTAY AYAZ Profesör · İstanbul Üniversitesi 2
  13. SEMRA ACER Doçent · Süleyman Demirel Üniversitesi 2
  14. SERHAT İMAMOĞLU Profesör · İstanbul Yeni Yüzyıl Üniversitesi 2
  15. YUSUF YILDIRIM Profesör · İstanbul Medipol Üniversitesi 2
  16. ZUHAL BAYRAMOĞLU Doçent · İstanbul Üniversitesi 2
  17. ABDULHALİM ŞENYİĞİT Profesör · İstanbul Atlas Üniversitesi 1
  18. AYKUT ORUÇ Doktor Öğretim Üyesi · İstanbul Üniversitesi-Cerrahpaşa 1
  19. FATİH ÖZBAKIŞ Doktor Öğretim Üyesi · İzmir Tınaztepe Üniversitesi 1
  20. HAFİZE UZUN Profesör · İstanbul Atlas Üniversitesi 1
  21. HATİCE SEĞMEN Doktor Öğretim Üyesi · Sağlık Bilimleri Üniversitesi same university 1
  22. HÜSEYİN BARAN ÖZDEMİR Doçent · Gazi Üniversitesi 1
  23. LEYLA HAZAR Doçent · Dicle Üniversitesi 1
  24. MUHAMMED ENES ATİK Doçent · İstanbul Teknik Üniversitesi 1
  25. NEŞE ALAGÖZ Doçent · Sağlık Bilimleri Üniversitesi same university 1
  26. SERVET ERDAL ADAL Profesör · İstanbul Medipol Üniversitesi 1
  27. SİNEM DURMUŞ Doçent · İzmir Katip Çelebi Üniversitesi 1
  28. SİNEM ÖZBAY ÖZYILMAZ Doçent · İstanbul Aydın Üniversitesi 1
  29. ZÜHAL ÖZEN TUNAY Profesör · Tobb Ekonomi Ve Teknoloji Üniversitesi 1
  30. ÖMÜR TABAK Profesör · Sağlık Bilimleri Üniversitesi same university 1
  31. İBRAHİM POLAT Profesör · Sağlık Bilimleri Üniversitesi same university 1
  32. ŞENGÜL ÖZDEK Profesör · Gazi Üniversitesi 1

National collaboration 21 institutions

Within own university60 joint works · Sağlık Bilimleri Üniversitesi

  1. Gaziantep Üniversitesi 18 works · 1 academics
  2. İstanbul Üniversitesi 9 works · 3 academics
  3. Kocaeli Üniversitesi 7 works · 1 academics
  4. İstanbul Medipol Üniversitesi 7 works · 3 academics
  5. Başkent Üniversitesi 5 works · 1 academics
  6. Tekirdağ Namık Kemal Üniversitesi 5 works · 1 academics
  7. Kocaeli Sağlık Ve Teknoloji Üniversitesi 4 works · 1 academics
  8. İstanbul Atlas Üniversitesi 4 works · 3 academics
  9. Karadeniz Teknik Üniversitesi 3 works · 1 academics
  10. Karabük Üniversitesi 2 works · 1 academics
Show all (21)
  1. Süleyman Demirel Üniversitesi 2 works · 1 academics
  2. Yıldız Teknik Üniversitesi 2 works · 1 academics
  3. İstanbul Yeni Yüzyıl Üniversitesi 2 works · 1 academics
  4. Dicle Üniversitesi 1 works · 1 academics
  5. Gazi Üniversitesi 1 works · 2 academics
  6. Tobb Ekonomi Ve Teknoloji Üniversitesi 1 works · 1 academics
  7. İstanbul Aydın Üniversitesi 1 works · 1 academics
  8. İstanbul Teknik Üniversitesi 1 works · 1 academics
  9. İstanbul Üniversitesi-Cerrahpaşa 1 works · 1 academics
  10. İzmir Katip Çelebi Üniversitesi 1 works · 1 academics
  11. İzmir Tınaztepe Üniversitesi 1 works · 1 academics

Other co-authors (incl. international) 79

MEHMET ERDOĞAN 15GÖKHAN PEKEL 13AHMET DEMİROK 7ZEYNEP ALKIN 7ABDULLAH ÖZKAYA 6BİRSEN GÖKYİĞİT 5CENGİZ ALAGÖZ 5ERCÜMENT BOZKURT 5AHMET TAYLAN YAZICI 4BURAK ERDEN 4CAN KOCASARAÇ 4Hatice Bilge Ersan 4HÜSEYİN DÜNDAR 4MİNE ÖZTÜRK 4SEZİN ÖZDOĞAN ERKUL 4VEYSEL LEVENT KARABAŞ 4ZİYA KAPRAN 4İHSAN YILMAZ 4İRFAN PERENTE 4GÖKHAN DEMİR 3KÜRŞAT ATALAY 3murat koçyiğit 3taliye cakabay 3ALİ AYDIN 2Ahmet Özyiğit 2Ali Ismet Tekirdag 2Bekir Gulac 2DUYGU TÜZÜN SAYIN 2DİLEK YAŞA 2EVRE PEKEL 2Gokce Yilmaz 2HATİCE BİLGE ARAZ ERŞAN 2Kübra Sarıcı 2NECATİ DURU 2PELİN KAYNAK 2RAMAZAN YAĞCI 2TUĞRUL ALTAN 2Zeynep Yılmazabdurrahmanoğlu 2Özen Osmanbaşoğlu 2ALPER GEZDİRİCİ

Show all (79)

ALİ ERATİLLA ERSENAli ŞanlıtürkBANU AYDINBüşra ÇırakCANAN TANIDIRCaner KaçmazDEMİR ABDULVAHİTECE UZUN KRANDİEMİNE ALYAMAÇ SUKGENESRA KUTLUFATİH UZUNGonca Yetkin YildirimHACI KOÇHASAN GÜNEŞHATİCE GÜNEŞ KAYAALPHİLAL DOKTURKAMURAN ŞANLIKEMAL YÜKSELMUSTAFA ÇAKANNEVAL TOPALNEVROZ ÜNLÜNUR ACARNUR KIRNail UzunluluSEREN PEHLİVANOĞLUSEYFULLAH ÖZDEMİRSadık Etka BAYRAMOLUSimge CınarSultan KavuncuoğluSümeyra DoğanSİBEL ZIRTILOĞLUSİNAN ALBAYRAKgönül aydoğaniffet doğanÖMER FARUK YILMAZİBRAHİM FARUK AKTÜRKŞAHİN AVŞARŞENOL SABANCI

Authors without an akaturk profile (international researchers, retired or former academics, students, clinicians) are grouped by name spelling; short forms such as “Gulluce M.” join the single full name they match.