Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation

Search Page

Filters

My NCBI Filters

Text availability

Article attribute

Article type

Publication date

Search Results

239 results

Filters applied: . Clear all
Results are displayed in a computed author sort order. The Results By Year timeline is not available.
Page 1
Update on the keratoconus genetics.
Nielsen K, Hjortdal J, Pihlmann M, Corydon TJ. Nielsen K, et al. Among authors: hjortdal j. Acta Ophthalmol. 2013 Mar;91(2):106-13. doi: 10.1111/j.1755-3768.2012.02400.x. Epub 2012 Apr 4. Acta Ophthalmol. 2013. PMID: 22471291 Free article. Review.
Incidence and prevalence of keratoconus in Denmark.
Nielsen K, Hjortdal J, Aagaard Nohr E, Ehlers N. Nielsen K, et al. Among authors: hjortdal j. Acta Ophthalmol Scand. 2007 Dec;85(8):890-2. doi: 10.1111/j.1600-0420.2007.00981.x. Epub 2007 Jul 23. Acta Ophthalmol Scand. 2007. PMID: 17645421 Free article.
Corneal grafting and banking.
Ehlers N, Hjortdal J, Nielsen K. Ehlers N, et al. Among authors: hjortdal j. Dev Ophthalmol. 2009;43:1-14. doi: 10.1159/000223833. Epub 2009 Jun 3. Dev Ophthalmol. 2009. PMID: 19494632 Review.
Longterm follow-up of penetrating keratoplasty for keratoconus.
Jensen LB, Hjortdal J, Ehlers N. Jensen LB, et al. Among authors: hjortdal j. Acta Ophthalmol. 2010 May;88(3):347-51. doi: 10.1111/j.1755-3768.2009.01525.x. Epub 2009 Jun 26. Acta Ophthalmol. 2010. PMID: 19563371 Free article.
239 results