Pure anteropositioning of inferior oblique. A selective weakening procedure.
Anteropositioning of inferior oblique is of late becoming popular but it inadvertently also entails a compulsory recession which may be undesirable at times. We have evaluated the effect of a 'pure' anteropositioning procedure (11 eyes), with Elliot & Nankin's anteropositioning (10 eyes) and Parks' recession (17 eyes). The mean change of vertical deviation in elevation in adduction (surso adduction) was 15.09 +/- 8.3 prism dioptres (p.d.) in pure anteropositioning; 23.50 +/- 5.6 p.d. in E & N's anteropositioning and 14.82 +/- 5.9 p.d. in Parks' recession, showing this procedure to be as effective as a conventional recession procedure. However, while the latter two methods produced an intorsion, 'pure' anteropositioning produced no significant change in torsion. It is a much simpler procedure to weaken the elevation without affecting the torsion.
Dr. Rajendra Prasad Centre for Opthalmic Sciences, All India Institute of Medical Sciences, New Delhi.
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Prakash
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Gupta
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Sharma
D005133:Eye Movements; D006801:Humans; D015835:Ocular Motility Disorders / Q000601:surgery*; D009801:Oculomotor Muscles / Q000601:surgery*; D013709:Tendon Transfer