Japanese Journal of Ophthalmology

, Volume 62, Issue 2, pp 237–242 | Cite as

Correlative factors’ analysis of postural-related ocular cyclotorsion with image-guided system

  • Fangkun Zhao
  • Ling Li
  • Wenkai Zhou
  • Dong Shi
  • Yu Fan
  • Liwei MaEmail author
Clinical Investigation



To explore the correlation between ocular cyclotorsion induced by sitting and supine positions as well as other selected factors, validated by an image-guided system.

Study design

A cross-sectional study conducted in 73 inpatients (85 eyes) who received intraocular operations in China Medical University.


The ocular cyclotorsion degree was recorded using an image-guided system (Verion Reference Unit, Alcon) by comparing images captured in sitting position, as well as pre- and post-different anesthesia methods in the supine position. Possible correlative factors including age, gender, eye axial length, best corrected visual acuity (BCVA), astigmatism degree, astigmatism axis, anesthesia, and comparison in laterality of eyes on ocular cyclotorsion were analyzed.


The total cyclotorsion rate was 88.24% and the cyclotorsion degree ranged from  14.0° to + 12.0° with an average of 4.6° ± 3.4°. Excyclotorsion was predominant OD whereas incyclotorsion was predominant OS (p < 0.05). The effect of eye axial length, BCVA, astigmatism degree, astigmatism axis, anesthesia method, age and gender on cyclotorsion orientation was not statistically significant, neither did these factors show any significant differences in the ocular cyclotorsion degree (p > 0.05). Pre- and post-anesthesia, and different anesthetic methods, did not show any significant influence on the ocular cyclotorsion degree (p > 0.05).


Cyclotorsion orientation seems to be correlated only with eye laterality. None of the other investigated factors, including age, gender, eye axial length, BCVA, astigmatism degree, astigmatism axis and anesthesia seems to affect cyclotorsion orientation or degree.


Ocular cyclotorsion Image guided system Anesthesia Astigmatism 



The research was supported by “Clinical Competency Construction Project of Hospital Reform in Liaoning Province” (LNCCC-D15-2015); Natural Science Foundation of Liaoning Province (2015020474).

Conflicts of interest

F. Zhao, None; L. Li, None; W. Zhou, None; D. Shi, None; Y. Fan, None; L. Ma, None.


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Copyright information

© Japanese Ophthalmological Society 2017

Authors and Affiliations

  • Fangkun Zhao
    • 1
    • 2
  • Ling Li
    • 1
    • 2
    • 3
  • Wenkai Zhou
    • 1
    • 2
  • Dong Shi
    • 1
    • 2
  • Yu Fan
    • 1
    • 2
  • Liwei Ma
    • 1
    • 2
    Email author
  1. 1.Department of Ophthalmologythe Fourth Affiliated Hospital of China Medical University, Eye Hospital of China Medical UniversityShenyangChina
  2. 2.The Key Lens Research Laboratory of Liaoning ProvinceShenyangChina
  3. 3.Beijing AIER-Intech Eye HospitalBeijingChina

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