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Hospital / health system · Chennai · India

Vasan Eye Care Hospital

In research, Vasan Eye Care Hospital stands highest in Health Sciences (#6,197 of 9,902 worldwide), Ophthalmology (#114 of 146 worldwide) and Medicine (#6,947 of 8,541 worldwide), 2022-now. Relative to its size it is most specialised in Ophthalmology, Radiology, Nuclear Medicine and Imaging and Medicine (Ophthalmology is 138.0× its share of world research).

vasaneye.inROR OpenAlex
World rank, 2022-now
#16,361
of 22,385 · #25,488 all time
Rank in India
#1,146
of 1,562
Research works
518
▲ 103% vs 2018-21
Citations
3k
5.7 per fractional work
Top-10% rate
5.4%
all institutions 10.0%
vs its own fields
0.87×
1.00× is exactly expected
Open access
80%
world 40%
International
16%
world 18%
Vasan Eye Care Hospital

What is Vasan Eye Care Hospital known for in research?

The fields where it stands highest, 2022-now, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorksAll time
Health SciencesDomain #6,197 of 9,902 4.5%175 #9911
OphthalmologySubfield #114 of 146 3.2%84 #419
MedicineField #6,947 of 8,541 4.5%170 #10394

Each strip is that field's whole ranked pool, with the notch where Vasan Eye Care Hospital sits in it, in the colour of the band that rank falls in. The track under the rate is the rate itself: it carries no average mark, because the average differs by field (from about 6% in Dentistry to 21% in Economics).

Which of those standings moved

The same fields on both windows: where it stood over the whole record, and where it stands in 2022-now. The distance is the story, and it is the one thing the two rank columns above cannot show.

  1. Health Sciences#9,911 #6,197
  2. Ophthalmology#419 #114
  3. Medicine#10,394 #6,947
all time2022-now, better2022-now, worse

A dot further right is a better standing. Fields it was not ranked in over the whole record are left out.

Which fields of science does Vasan Eye Care Hospital work in?

In 2022-now, 82% of research at Vasan Eye Care Hospital is in Health Sciences, 10% in Life Sciences. Its largest fields are Medicine (80%), Biochemistry, Genetics and Molecular Biology (6%), Engineering (2%). It does 3.4× the world's share of Health Sciences.

Health Sciences: 237 fractional works · 81.5% of its workMedicine: 231 fractional works · 79.5% of its workOphthalmology: 107 fractional works · 36.8% of its workRadiology, Nuclear Medicine and Imaging: 47 fractional works · 16.0% of its workEpidemiology: 18 fractional works · 6.1% of its workPublic Health, Environmental and Occupational Health: 11 fractional works · 3.7% of its workSurgery: 10 fractional works · 3.5% of its workPathology and Forensic Medicine: 6 fractional works · 1.9% of its workNeurology: 5 fractional works · 1.8% of its workRheumatology: 4 fractional works · 1.5% of its workPulmonary and Respiratory Medicine: 4 fractional works · 1.4% of its workPediatrics, Perinatology and Child Health: 3 fractional works · 1.1% of its workPhysiology: 3 fractional works · 0.9% of its workDermatology: 3 fractional works · 0.9% of its workEndocrinology, Diabetes and Metabolism: 2 fractional works · 0.5% of its workComplementary and alternative medicine: 1 fractional works · 0.4% of its workCardiology and Cardiovascular Medicine: 1 fractional works · 0.3% of its workInfectious Diseases: 1 fractional works · 0.3% of its workPharmacology: 1 fractional works · 0.3% of its workPsychiatry and Mental health: 1 fractional works · 0.3% of its workAnatomy: 1 fractional works · 0.2% of its workUrology: 1 fractional works · 0.2% of its workSmaller subfields together: 3 fractional works · 1.2% of its workHealth Professions: 3 fractional works · 1.1% of its workGeneral Health Professions: 1 fractional works · 0.5% of its workHealth Information Management: 1 fractional works · 0.4% of its workSmaller subfields together: 1 fractional works · 0.2% of its workDentistry: 1 fractional works · 0.4% of its workOral Surgery: 1 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.2% of its workVeterinary: 1 fractional works · 0.3% of its workSmall Animals: 1 fractional works · 0.3% of its workNursing: 0 fractional works · 0.1% of its workLife Sciences: 28 fractional works · 9.8% of its workBiochemistry, Genetics and Molecular Biology: 17 fractional works · 5.8% of its workGenetics: 8 fractional works · 2.7% of its workMolecular Biology: 6 fractional works · 2.1% of its workClinical Biochemistry: 1 fractional works · 0.2% of its workCell Biology: 1 fractional works · 0.2% of its workSmaller subfields together: 2 fractional works · 0.6% of its workAgricultural and Biological Sciences: 4 fractional works · 1.3% of its workPlant Science: 1 fractional works · 0.4% of its workEcology, Evolution, Behavior and Systematics: 1 fractional works · 0.3% of its workFood Science: 1 fractional works · 0.3% of its workInsect Science: 1 fractional works · 0.3% of its workNeuroscience: 3 fractional works · 1.2% of its workCognitive Neuroscience: 2 fractional works · 0.6% of its workNeurology: 1 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.2% of its workImmunology and Microbiology: 3 fractional works · 1.0% of its workParasitology: 2 fractional works · 0.6% of its workImmunology: 1 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.2% of its workPharmacology, Toxicology and Pharmaceutics: 1 fractional works · 0.4% of its workPharmacology: 1 fractional works · 0.2% of its workSmaller subfields together: 1 fractional works · 0.2% of its workPhysical Sciences: 13 fractional works · 4.5% of its workEngineering: 6 fractional works · 1.9% of its workMechanical Engineering: 1 fractional works · 0.5% of its workBiomedical Engineering: 1 fractional works · 0.4% of its workBuilding and Construction: 1 fractional works · 0.4% of its workElectrical and Electronic Engineering: 1 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.4% of its workEnvironmental Science: 3 fractional works · 1.0% of its workHealth, Toxicology and Mutagenesis: 1 fractional works · 0.2% of its workSmaller subfields together: 2 fractional works · 0.7% of its workComputer Science: 2 fractional works · 0.6% of its workComputer Vision and Pattern Recognition: 1 fractional works · 0.3% of its workInformation Systems: 1 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.2% of its workMathematics: 1 fractional works · 0.2% of its workStatistics and Probability: 1 fractional works · 0.2% of its workChemistry: 0 fractional works · 0.2% of its workEarth and Planetary Sciences: 0 fractional works · 0.2% of its workMaterials Science: 0 fractional works · 0.2% of its workChemical Engineering: 0 fractional works · 0.1% of its workPhysics and Astronomy: 0 fractional works · 0.1% of its workSocial Sciences: 12 fractional works · 4.2% of its workBusiness, Management and Accounting: 4 fractional works · 1.2% of its workStrategy and Management: 2 fractional works · 0.6% of its workManagement Information Systems: 1 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.2% of its workPsychology: 3 fractional works · 1.0% of its workSocial Psychology: 2 fractional works · 0.6% of its workExperimental and Cognitive Psychology: 1 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.2% of its workEconomics, Econometrics and Finance: 2 fractional works · 0.7% of its workEconomics and Econometrics: 2 fractional works · 0.7% of its workDecision Sciences: 2 fractional works · 0.5% of its workGeneral Decision Sciences: 1 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.2% of its workSocial Sciences: 1 fractional works · 0.5% of its workEducation: 1 fractional works · 0.2% of its workSmaller subfields together: 1 fractional works · 0.3% of its workArts and Humanities: 1 fractional works · 0.3% of its workArcheology: 1 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.1% of its workALL ITS WORKVasan Eye CareHospital291fractional works, 2022-now
Life Sciences10%Physical Sciences4%Health Sciences82%Social Sciences4%

Each ring splits the one inside it: the four domains of science, their fields, their subfields. Size is fractional works in 2022-now. Every slice is a page; the interactive view zooms down to single topics and colours each by how much more of it this institution does than the world.

Its 4 domains and 25 fields, with their numbers
    1. Medicine23179.5%
    2. Health Professions31.1%
    3. Dentistry10.4%
    4. Veterinary10.3%
    5. Nursing00.1%
    1. Biochemistry, Genetics and Molecular Biology175.8%
    2. Agricultural and Biological Sciences41.3%
    3. Neuroscience31.2%
    4. Immunology and Microbiology31.0%
    5. Pharmacology, Toxicology and Pharmaceutics10.4%
    1. Engineering61.9%
    2. Environmental Science31.0%
    3. Computer Science20.6%
    4. Mathematics10.2%
    5. Chemistry00.2%
    6. Earth and Planetary Sciences00.2%
    7. Materials Science00.2%
    8. Chemical Engineering00.1%
    9. Physics and Astronomy00.1%
    1. Business, Management and Accounting41.2%
    2. Psychology31.0%
    3. Economics, Econometrics and Finance20.7%
    4. Decision Sciences20.5%
    5. Social Sciences10.5%
    6. Arts and Humanities10.3%
All of science, and how each field's share has moved since 1950: the Science domain explorer

What does Vasan Eye Care Hospital specialise in?

Where its research is concentrated relative to its size: Ophthalmology takes 138.0× the share of its output that it takes of world research.

  1. OphthalmologySubfield · 107.1 works138×
  2. Radiology, Nuclear Medicine and ImagingSubfield · 46.5 works18×
  3. MedicineField · 231.3 works4.1×
  4. Health SciencesDomain · 237.1 works3.5×
← less than its size predicts1×more →

Location quotient, a volume reading rather than an impact one. It surfaces small, lopsided specialities.

Field profile

Location quotient across every field it publishes in: outside the ring is more than an institution of this size would be expected to publish, inside it is less.

Agricultural and Biological Sciences: 0.28× its world share, 4 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 1.09× its world share, 17 worksBiochemistry, Geneti…Immunology and Microbiology: 1.02× its world share, 3 worksImmunology and Micro…Neuroscience: 0.72× its world share, 3 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 1.25× its world share, 1 worksPharmacology, Toxico…Chemical Engineering: 0.33× its world share, 0 worksChemical EngineeringChemistry: 0.11× its world share, 0 worksChemistryComputer Science: 0.08× its world share, 2 worksComputer ScienceEarth and Planetary Sciences: 0.11× its world share, 0 worksEarth and Planetary …Engineering: 0.13× its world share, 6 worksEngineeringEnvironmental Science: 0.20× its world share, 3 worksEnvironmental ScienceMaterials Science: 0.05× its world share, 0 worksMaterials ScienceMathematics: 0.19× its world share, 1 worksMathematicsPhysics and Astronomy: 0.04× its world share, 0 worksPhysics and AstronomyDentistry: 0.87× its world share, 1 worksDentistryHealth Professions: 0.43× its world share, 3 worksHealth ProfessionsMedicine: 4.14× its world share, 231 worksMedicineNursing: 0.25× its world share, 0 worksNursingVeterinary: 2.11× its world share, 1 worksVeterinaryArts and Humanities: 0.12× its world share, 1 worksArts and HumanitiesBusiness, Management and Accounting: 0.37× its world share, 4 worksBusiness, Management…Decision Sciences: 0.53× its world share, 2 worksDecision SciencesEconomics, Econometrics and Finance: 0.32× its world share, 2 worksEconomics, Econometr…Psychology: 0.33× its world share, 3 worksPsychologySocial Sciences: 0.04× its world share, 1 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Medicine, 4.1×. Every wedge is a field page.

All 25 fields, with their numbers
  1. Medicine4.14×231 works
  2. Veterinary2.11×1 works
  3. Pharmacology, Toxicology and Pharmaceutics1.25×1 works
  4. Biochemistry, Genetics and Molecular Biology1.09×17 works
  5. Immunology and Microbiology1.02×3 works
  6. Dentistry0.87×1 works
  7. Neuroscience0.72×3 works
  8. Decision Sciences0.53×2 works
  9. Health Professions0.43×3 works
  10. Business, Management and Accounting0.37×4 works
  11. Chemical Engineering0.33×0 works
  12. Psychology0.33×3 works
  13. Economics, Econometrics and Finance0.32×2 works
  14. Agricultural and Biological Sciences0.28×4 works
  15. Nursing0.25×0 works
  16. Environmental Science0.20×3 works
  17. Mathematics0.19×1 works
  18. Engineering0.13×6 works
  19. Arts and Humanities0.12×1 works
  20. Chemistry0.11×0 works
  21. Earth and Planetary Sciences0.11×0 works
  22. Computer Science0.08×2 works
  23. Materials Science0.05×0 works
  24. Physics and Astronomy0.04×0 works
  25. Social Sciences0.04×1 works

Who are the top researchers at Vasan Eye Care Hospital?

Ranked on the quality score, John Robert Leo, Shruti Nishanth and Abhilasha Baharani lead among researchers whose main affiliation is Vasan Eye Care Hospital.

  1. 1 John Robert Leo India · #3,253,104 worldwide 59 citations · 125 works
  2. 2 Shruti Nishanth India · #4,208,680 worldwide 73 citations · 26 works
  3. 3 Abhilasha Baharani India · #4,515,428 worldwide 88 citations · 17 works
  4. 4 Rohini Grover India · #4,703,356 worldwide 51 citations · 16 works
  5. 5 Purvasha Narang India · #4,803,094 worldwide 305 citations · 25 works
  6. 6 Sujatha Mohan India · #5,089,406 worldwide 358 citations · 34 works
  7. 7 Nivean Madhivanan India · #5,427,826 worldwide 162 citations · 35 works
  8. 8 Raja Rami Reddy India · #5,432,981 worldwide 135 citations · 23 works
  9. 9 Manoj Khatri India · #5,497,802 worldwide 257 citations · 33 works
  10. 10 Jitendra Jethani India · #5,887,961 worldwide 975 citations · 86 works
All ranked researchers at Vasan Eye Care Hospital

What are the most cited papers from Vasan Eye Care Hospital?

The most cited paper from Vasan Eye Care Hospital is "Epidemiology, clinical profile, management, and outcome of COVID-19-associated rhino-orbital-cerebral mucormycosis in 2826 patients in India – Collaborative OPAI-IJO Study on Mucormycosis in COVID-19 (COSMIC), Report 1" (Mrittika Sen et al., 2021), with 424 citations. Next come "Micropulse transscleral diode laser cyclophotocoagulation in the treatment of refractory glaucoma" (316) and "Digital Eye Strain- A Comprehensive Review" (307).

Most cited papers
#PaperReleasedCitations
1 Epidemiology, clinical profile, management, and outcome of COVID-19-associated rhino-orbital-cerebral mucormycosis in 2826 patients in India – Collaborative OPAI-IJO Study on Mucormycosis in COVID-19 (COSMIC), Report 1 Mrittika Sen et al. · Indian Journal of Ophthalmology Open access153 authors 18 Jun 2021 424
2 Micropulse transscleral diode laser cyclophotocoagulation in the treatment of refractory glaucoma Anna Marie Tan, Muthuraman Chockalingam, Maria Cecilia Aquino et al. · Clinical and Experimental Ophthalmology Open access 22 Feb 2010 316
3 Digital Eye Strain- A Comprehensive Review Kirandeep Kaur, Bharat Gurnani, Swatishree Nayak et al. · Ophthalmology and Therapy Open access 9 Jul 2022 307
4 Diabetic Retinopathy and VEGF Neetu S. Gupta, S. Mansoor, Ashish Sharma et al. · The Open Ophthalmology Journal Open access Feb 2013 291
5 Proteases, proteolysis and inflammatory molecules in the tears of people with keratoconus Sivaraman Arumugam Balasubramanian, Sujatha Mohan, David Cecil Pye et al. · Acta Ophthalmologica 13 Mar 2012 256
All 61 most cited papers, with filters and sorting

Which keywords describe research at Vasan Eye Care Hospital?

By fractional works in 2022-now, weighted toward what it does more of than the world: Glaucoma, Epidemiology, Optical Coherence Tomography, Intraocular Pressure, Myopia, Macular Degeneration, Optic Nerve and Intravitreal Injection.

▲ more of its work than of the world's◆ about the world's share▼ less than the world's

Size is fractional works in 2022-now in the topics tagged with each word; colour is the word's share of this institution's work against its share of the world's. The 40 words are chosen for being large and distinctive. Each links to the topic it comes from most.

All 40 words, with their numbers
  1. Epidemiology54▲ 4.6×44 topics
  2. Glaucoma45▲ 103×4 topics
  3. Optical Coherence Tomography34▲ 117×3 topics
  4. Intraocular Pressure31▲ 121×2 topics
  5. Myopia28▲ 144×2 topics
  6. Macular Degeneration26▲ 72×3 topics
  7. Optic Nerve25▲ 87×2 topics
  8. Intravitreal Injection23▲ 110×2 topics
  9. Diabetic Retinopathy23▲ 79×2 topics
  10. Femtosecond Laser20▲ 133×2 topics
  11. Intraocular Lens Implantation20▲ 229×1 topic
  12. Posterior Capsule Opacification20▲ 229×1 topic
  13. Inflammation19▲ 3.1×18 topics
  14. Risk Factors19▲ 5.9×6 topics
  15. Vascular Endothelial Growth Factor19▲ 72×2 topics
  16. Neurodegeneration18▲ 20×2 topics
  17. Retinal Ganglion Cells18▲ 55×3 topics
  18. Oxidative Stress18▲ 3.7×10 topics
  19. Ocular Hypertension17▲ 116×1 topic
  20. Visual Field Progression17▲ 116×1 topic
  21. COVID-1917▲ 4.5×3 topics
  22. Ocular Findings17▲ 209×1 topic
  23. Retinal Artery Occlusion17▲ 209×1 topic
  24. OCT Imaging16▲ 183×2 topics
  25. Choroidal Thickness16▲ 100×1 topic
  26. Retinal Pigment Epithelium16▲ 100×1 topic
  27. Refractive Error15▲ 122×1 topic
  28. Visual Impairment15▲ 97×1 topic
  29. Corneal Biomechanics14▲ 127×1 topic
  30. Immunosuppressive Therapy14▲ 25×2 topics
  31. Keratoconus14▲ 127×1 topic
  32. Behçet's Disease13▲ 163×1 topic
  33. Uveitis13▲ 163×1 topic
  34. Macular Hole13▲ 185×1 topic
  35. Vitreoretinal Surgery13▲ 185×1 topic
  36. Genetic Mutations12▲ 9.3×9 topics
  37. Endophthalmitis11▲ 106×2 topics
  38. Wound Healing11▲ 14×5 topics
  39. Stem Cell Therapy10▲ 36×3 topics
  40. Inflammatory Cytokines9▲ 37×2 topics

Which research topics does Vasan Eye Care Hospital publish most on?

By volume in 2022-now: Intraocular Surgery and Lenses, Glaucoma and retinal disorders, Retinal and Optic Conditions and Retinal Diseases and Treatments.

Intraocular Surgery and …20Intraocular Surgery and Lenses: 20 fractional worksGlaucoma and retinal dis…17Glaucoma and retinal disorders: 17 fractional worksRetinal and Optic Conditions: 17 fractional worksRetinal Diseases and Tre…16Retinal Diseases and Treatments: 16 fractional worksOphthalmology and Visual…15Ophthalmology and Visual Impairment Studies: 15 fractional worksCorneal surgery and disorders: 14 fractional worksOcular Diseases and Behçet’s Syndrome: 13 fractional worksRetinal and Macular Surg…13Retinal and Macular Surgery: 13 fractional worksOcular Surface and Contact Lens: 9 fractional worksCorneal Surgery and Treatments: 9 fractional works
OphthalmologyEpidemiologyRadiology, Nuclear Medicine and ImagingPublic Health, Environmental and Occupational Health

Area is fractional works; colour is the subfield each topic belongs to.

  1. 1 Intraocular Surgery and Lenses Ophthalmology 20 works
  2. 2 Glaucoma and retinal disorders Ophthalmology 17 works
  3. 3 Retinal and Optic Conditions Ophthalmology 17 works
  4. 4 Retinal Diseases and Treatments Ophthalmology 16 works
  5. 5 Ophthalmology and Visual Impairment Studies Epidemiology 15 works
  6. 6 Corneal surgery and disorders Radiology, Nuclear Medicine and Imaging 14 works
  7. 7 Ocular Diseases and Behçet’s Syndrome Ophthalmology 13 works
  8. 8 Retinal and Macular Surgery Radiology, Nuclear Medicine and Imaging 13 works
  9. 9 Ocular Surface and Contact Lens Public Health, Environmental and Occupational Health 9 works
  10. 10 Corneal Surgery and Treatments Radiology, Nuclear Medicine and Imaging 9 works

How open and international is its research?

Against the world's own shares: the tick on each track. Both are shares of its output, so they sit on one scale and can be read against each other as well as against the world.

openly available80.3%not open19.7%

World: 40% of research is openly available.

with international co-authors15.7%domestic only84.3%

World: 18% is written across borders.

How has Vasan Eye Care Hospital's research output changed?

Output in 2022-2025 was 103% higher than in 2018-2021.

still counting1990200020102020
grewheldshrank

The same series as a ribbon: one cell per year, darker for more. The line above answers how much; this answers when.

Its share of all research

Growing output can still be a shrinking share: all of science grows. This is Vasan Eye Care Hospital as a percentage of every work published that year, 0.0011% in 2024.

still counting0.00050%0.0010%0.0015%Vasan Eye Care Hospital0.00090% in 20251990200020102020

Fractional works of Vasan Eye Care Hospital over all fractional works that year. How the balance of science has shifted.

How much of it reaches the world top 10%

Year by year, against all institutions in the same year.

still counting5%10%15%all institutions10.0% in 2025Vasan Eye Care Hospital4.9% in 20252020

Of each year's output, the share that reached the world's 10% most cited for its field and year. Peak 10.5% in 2021.

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Vasan Eye Care Hospital on Science Explorer

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