title: [Incidence, localization, length and course of the cilioretinal artery.Is there an effect on the course of temporal rental arteries?].
abstract: BACKGROUND
  A cilioretinal artery (crA) can be of clinical importance because of its possible blood supply to central retinal areas.
  
  
  METHODS
  140 undergraduates were investigated ophthalmoscopically. The crA were classified according to length and possible supply to the macular area. In addition, the retinal areas, restricted by the big temporal vessels, were measured.
  
  
  RESULTS
  At least one crA was found ophthalmoscopically in 54 out of 140 (38.6%) undergraduates or in 65 (23.2%) of 280 eyes, respectively. 88.7% of the crA were found on the temporal side of the retina. A possible participation in the arterial supply to the macular area was found in 49.1% of the temporal crA. Particularly long crA were seen in 5% of all persons investigated or in 3.2% of all eyes examined, respectively. No significant difference in spherical equivalent appeared between those eyes having a crA and the other eye without one. Calculation of retinal areas revealed that the superior retinal artery showed a continued peripheral course upon the retina if a long crA was present compared to those fundi without a crA.
  
  
  CONCLUSIONS
  Every fifth eye and approximately every third person had a least one crA. Long crA were distinctly involved in the blood supply to the macular area or to the central part of the retina. It seems that the retinal temporal arteries are pushed to the superior retinal periphery if a long crA is present, influencing the developmental course of the retinal vessels.
authors.affiliation: Univ.-Augenklinik Freiburg.
authors.forename: L H
authors.initials: LH
authors.lastname: Nipken
authors.forename: D
authors.initials: D
authors.lastname: Schmidt
mesh_terms: D000328:Adult; D002924:Ciliary Body / Q000098:blood supply*; D005260:Female; D005451:Fluorescein Angiography; D006801:Humans; D008266:Macula Lutea / Q000098:blood supply; D008297:Male; D009887:Ophthalmoscopy; D012016:Reference Values; D012029:Refraction, Ocular; D012161:Retinal Artery / Q000033:anatomy & histology*; D012169:Retinal Vein / Q000033:anatomy & histology
vernacular_title: Häufigkeit, Lokalisation, Länge und Verlauf der zilioretinalen Arterie. Besteht ein Einfluss auf den Verlauf der temporalen retinalen Arterien?