Science Explorer Interactive view Map
Topic · Ophthalmology

Nasolacrimal Duct Obstruction Treatments

Nasolacrimal Duct Obstruction Treatments is a research topic within Ophthalmology. Science Explorer counts 6.1k research works in it since 1950. 9.9% of them reached the world's top 10% most cited for their field and year.

This cluster of papers focuses on the comparison of different techniques and outcomes in dacryocystorhinostomy, including endoscopic and external approaches, for the treatment of nasolacrimal duct obstruction, including congenital cases. It also covers topics such as the use of mitomycin C, canalicular stenosis, epiphora, and lacrimal sac tumors.

  • Dacryocystorhinostomy
  • Endoscopic
  • External
  • Nasolacrimal Duct Obstruction
  • Congenital Nasolacrimal Duct Obstruction
  • Lacrimal Drainage System
  • Mitomycin C
  • Canalicular Stenosis
  • Epiphora
  • Lacrimal Sac Tumors
Research works
6.1k
fractional, since 1950
In the world top 10%
604
per year above
Top-10% rate
9.9%
share of its works in the world top 10%
Growth, 2013–17 → 2018–22
+10%
the tick is no change

This ranks research output and citation impact. It says nothing about the quality of diagnosis, treatment or care.

Which countries lead Nasolacrimal Duct Obstruction Treatments research?

By volume, India and China publish the most (159 and 149 works in 2022–2025).

By volume, 2022–2025

  1. 1 India 159 works
  2. 2 China 149 works
  3. 3 United States 144 works
  4. 4 Japan 54 works
  5. 5 Türkiye 54 works
  6. 6 South Korea 34 works
  7. 7 United Kingdom 34 works
  8. 8 Egypt 31 works
  9. 9 Germany 30 works
  10. 10 Australia 21 works

How concentrated that is

The same countries as shares of everything the list above accounts for. A node where two countries do two thirds of the work and one spread evenly across twelve read alike as a ranking and not at all alike here.

India: 22.4%China: 21.0%United States: 20.2%Japan: 7.7%6 others listed: 28.8%22%largest
India159 · 22.4%China149 · 21.0%United States144 · 20.2%Japan54 · 7.7%6 others listed204 · 28.8%

Shares of the rows listed above, not of the whole node.

Which institutions lead Nasolacrimal Duct Obstruction Treatments research?

By volume in 2022–2025, L V Prasad Eye Institute publishes the most Nasolacrimal Duct Obstruction Treatments research, followed by Sun Yat-sen University and Sağlık Bilimleri Üniversitesi.

By volume, 2022–2025

  1. 1 L V Prasad Eye InstituteIndia 68 works
  2. 2 Sun Yat-sen UniversityChina 8 works
  3. 3 Sağlık Bilimleri ÜniversitesiTürkiye 7 works
  4. 4 Dr. Shroff’s Charity Eye HospitalIndia 6 works
  5. 5 Federal State Scientific Institution Research Institute of Eye DiseasesRussia 6 works
  6. 6 Beijing Tongren HospitalChina 5 works
  7. 7 All India Institute of Medical SciencesIndia 5 works
  8. 8 Capital Medical UniversityChina 5 works
  9. 9 Royal Adelaide HospitalAustralia 5 works
  10. 10 Zagazig UniversityEgypt 5 works

Who are the leading researchers in Nasolacrimal Duct Obstruction Treatments?

The most-cited researchers publishing on Nasolacrimal Duct Obstruction Treatments include Bita Esmaeli and Kazuo Tsubota.

  1. 1 Bita Esmaeli United States 1.5k citations
  2. 2 Kazuo Tsubota Japan 804 citations

Ranked by citations received across their whole record, among researchers with at least three works on this topic.

Where is Nasolacrimal Duct Obstruction Treatments research done?

The largest centres of Nasolacrimal Duct Obstruction Treatments research in 2022–2025 are Hyderabad (India), Beijing (China), Istanbul (Türkiye) and Shanghai (China). Among places with at least 20 works in it, it is an unusually large share of all research in Hyderabad and Istanbul.

Largest cities, 2022–2025

  1. 1 Hyderabad India 70 works
  2. 2 Beijing China 31 works
  3. 3 Istanbul Türkiye 21 works
  4. 4 Shanghai China 16 works
  5. 5 Seoul South Korea 16 works
  6. 6 Moscow Russia 15 works
  7. 7 London United Kingdom 14 works
  8. 8 Guangzhou China 11 works
  9. 9 New Delhi India 11 works
  10. 10 Riyadh Saudi Arabia 10 works

Where it is the local speciality

  1. HyderabadIN · 70.0 works39×
  2. IstanbulTR · 21.2 works4.7×
← less than its size predicts1×more →

Location quotient: how much more of its research is in Nasolacrimal Duct Obstruction Treatments than the world average.

See Nasolacrimal Duct Obstruction Treatments on the map

Is Nasolacrimal Duct Obstruction Treatments research growing?

Output in 2018–2022 was 10% higher than in 2013–2017, peaking in 2025. The fastest-growing topics are Nasolacrimal Duct Obstruction Treatments.

19801990200020102020
grewheldshrank

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

Which topics inside it are moving

Growth and decline on one axis around a shared zero. Two lists side by side hide the thing that matters: whether the growth dwarfs the decline, or the other way round.