OMIA:000941-9940 : Split upper eyelid defect in Ovis aries (sheep)

Categories: Vision / eye phene

Links to MONDO diseases: No links.

Mendelian trait/disorder: unknown

Considered a defect: yes

Species-specific symbol: SUED

Species-specific description: Crosses among various rare breeds of sheep (mainly Jacob's Sheep and Hebridean) suggested that the presence of a split in the eyelid appears to be associated with the presence of 4 horns (Henson, 1981). See also polyceraty.

Genetic engineering: Unknown
Have human generated variants been created, e.g. through genetic engineering and gene editing

Cite this entry

Nicholas, F. W., Tammen, I., & Sydney Informatics Hub. (2017). OMIA:000941-9940: Online Mendelian Inheritance in Animals (OMIA) [dataset].


Note: the references are listed in reverse chronological order (from the most recent year to the earliest year), and alphabetically by first author within a year.

2017 Gascoigne, E., Williams, D.L., Reyher, K.K. :
Survey of prevalence and investigation of predictors and staining patterns of the split upper eyelid defect in Hebridean sheep. Vet Rec , 2017. Pubmed reference: 28780532. DOI: 10.1136/vr.104082.
1981 Henson, E. :
A study of the congenital defect 'split eyelid' in the multihorned breeds of British sheep Ark 8:84-90, 1981.

Edit History

  • Created by Frank Nicholas on 06 Sep 2005
  • Changed by Frank Nicholas on 15 Aug 2017