J Korean Ophthalmol Soc.  2002 Aug;43(8):1528-1535.

The Correlations Between Landmark of Inferior Oblique Muscle Recession and Adjacent Globe Structures

• Kim DH
• Lee SH
• Lee JB
• Chung IH

Abstract

PURPOSE: This study aimed to find out whether there are relationships among anatomic characteristics of inferior oblique muscle insertion, corneal diameter, axial length and inferior oblique recession landmark.
METHODS
Thirty-one Korean cadaver orbits were dissected to expose the full length of extraocular muscles and sclera, and then we measured the length from the recession landmark of inferior oblique to the lateral edge of insertion of inferior rectus and to the inferior edge of insertion of lateral rectus.
RESULTS
The mean of angles between the inferior oblique muscle insertion and lateral rectus direction is 27.9+/-9.0degrees and the range is from 15 degrees to 50 degrees . There is a statistically significant correlation between cord length of 8 mm recession landmark of inferior oblique and angles of inferior oblique insertion with lateral rectus direction. We divided the shapes of inferior oblique insertion into straight and convexed curves. Twelve insertions are straight and thirteen insertions are curved. There is no statistically significant correlation between shape of inferior oblique insertion and cord length from recession landmark. In corneal diameter and axial length, we found correlations with cord length of 8 mm and 10 mm recession landmark of inferior oblique.
CONCLUSIONS
We conclud that there are some correlations among anatomic characteristics, axial length and corneal diameter with recession landmark of inferior oblique.

Keyword

Cord length; Inferior oblique recession; Inferior oblique insertion; Corneal diameter; Axial length; Landmark

MeSH Terms

Cadaver
Muscles
Orbit
Sclera