Can ocular torsion be measured using the slitlamp biomicroscope?

Kothari, Mihir T.; Venkatesan, G.; Shah, Jugal P.; Kothari, Kulin; Nirmalan, Praveen K.
March 2005
Indian Journal of Ophthalmology;Mar2005, Vol. 53 Issue 1, p43
Academic Journal
journal article
Purpose: To evaluate and compare a stereo-biomicroscopic technique of ocular torsion measurement with fundus photographic technique.Methods: This prospective masked observational study included 72 eyes of 36 consecutive subjects with normal ocular motility. The disc-foveal angle was measured by two masked investigators using a slitlamp stereo-biomicroscopic and fundus photographic technique.Results: The mean age was 13.7 years (6 - 44 years), and 15 (41.6%) were males. The average torsion using the slitlamp technique was 5.5 +/- 3.3 degrees and 6.1 +/- 4.3 degrees with fundus photographic technique. Clinical agreement between the two techniques for 5 degree and 6 degree torsion was 81% and 90% respectively. The average difference between the two techniques was 3.0 +/- 2.6 degrees . The mean inter-ocular difference was 3.3 +/- 2.7 degrees (SD, 2.77) and 5.5 +/- 4.6 degrees using the slitlamp and fundus photographic technique respectively. The Pearson correlation coefficient (r2) was 0.5.Conclusion: The fundus photographic technique remains the gold standard test for the measurement of ocular torsion. The slitlamp biomicroscopic method can be useful where a fundus camera is unavailable. Further studies are required to test the repeatability of these tests.


Related Articles

  • Imaging the eye.  // Mayo Clinic Guide to Better Vision;2007, p45 

    A chapter from the book "Mayo Clinic Guide to Better Vision" is presented. It explains several imaging tests that are commonly used in eye examinations. Fundus photography is used to diagnose variety of eye disorders and to provide record of changes in the appearance of the retina. It notes the...

  • Evaluation Techniques for Paretic Vertical Strabismus. Biernacki, Ronald // American Orthoptic Journal;2011, Vol. 61, p2 

    Vertical strabismus can be associated with paretic or restrictive causes. Paretic causes may be due to a weak muscle or paresis, or to a total lack of muscle function caused by a third, fourth or sixth cranial nerve palsy. When examining a patient with vertical strabismus, it is paramount that...

  • The Clinical Utility of Fundus Autofluorescence Imaging. Gerson, Jeffry D. // Review of Optometry;4/15/2012 Supplement, p3 

    The article discusses the importance of fundus autofluorescence (FAF) imaging technique in clinical medicine. FAF provides an objective measurement of the metabolic activity of the retinal pigment epithelium (RPE). FAF allows topographic mapping of lipofuscin distribution in the RPE that occur...

  • An Automated Tracking Approach for Extraction of Retinal Vasculature in Fundus Images. Osareh, Alireza; Shadgar, Bita // Journal of Ophthalmic & Vision Research;Jan2010, Vol. 5 Issue 1, p20 

    Purpose: To present a novel automated method for tracking and detection of retinal blood vessels in fundus images. Methods: For every pixel in retinal images, a feature vector was computed utilizing multiscale analysis based on Gabor filters. To classify the pixels based on their extracted...

  • Accuracy of Double Maddox Rod with Induced Hypertropia in Normal Subjects. Marsh, Justin D.; Durkin, Martin W.; Hack, Andrew E.; Markowitz, Bethany B.; Cheeseman, Edward W. // American Orthoptic Journal;2014, Vol. 64 Issue 1, p76 

    Background and Purpose: The double Maddox rod is a commonly used instrument to test for cyclotorsion in the clinical setting. This paper assesses the ability of patients without torsional complaint to accurately demonstrate torsional status with varying degrees of induced hypertropia as tested...

  • Arterial occlusion after scleral buckling.  // British Journal of Ophthalmology;Apr2010, Vol. 94 Issue 4, p523 

    The article presents answers to questions regarding the colour fundus photograph and findings in the fluorescein angiogram.

  • Plusoptix Vision Screener: the accuracy and repeatability of refractive measurements using a new autorefractor. A H Dahlmann-Noor // British Journal of Ophthalmology;Mar2009, Vol. 93 Issue 3, p346 

    BACKGROUND: The Plusoptix Vision Screener (PVS) is a new non-cycloplegic videoretinoscopy autorefractor. Refractive accuracy may affect its performance as a screening tool. AIMS: Study 1: To determine the intra- and interobserver variability of PVS measurements. Study 2: To compare PVS...

  • Optic Nerve Head Segmentation Using Hough Transform and Active Contours. Tjandrasa, Handayani; Wijayanti, Ari; Suciati, Nanik // Telkomnika;2012, Vol. 10 Issue 3, p531 

    Optic nerve head is part of the retina where ganglion cell axons exit the eye to form the optic nerve. Glaucomatous changes related to loss of the nerve fibers decrease the neuroretinal rim and expand the area and volume of the cup. Therefore optic nerve head evaluation is important for early...

  • Infant's Pupil Worries Parents. Dunbar, Mark T. // Review of Optometry;2/15/2005, Vol. 142 Issue 2, p107 

    This articles cites a study on infant's pupils. The parents of eleven month old female noted an abnormal white pupil reflex in the right eye in photographs for the past several months. They also noted that the same eye appeared smaller than the left eye. On examination, the patient had very poor...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics