A comparison was done between force development in the medial and lateral rectus muscles during saccadic movements in 8 adult patients, 2 with esotropia and 6 with exotropia who underwent surgery under topical anesthesia. Five medial rectus muscles and 8 lateral rectus muscles were studied. Isometric muscle tension was recorded with a strain gauge system from the detached muscle. Patients made saccadic eye movements with the non recorded eye. In the tension signals produced by saccades, peak tension (Fp) and steady tension (Fs) were measured. The values of Fp and Fs at different amplitudes of the saccadic eye movements were compared in the lateral and the medial rectus muscles of patients with esotropia and exotropia. There were no consistent statistical differences between values of Fp and Fs obtained in the two strabismus conditions. The force development was the same in both horizontal eye muscles of patients with esotropia and exotropia.

Isometric force development of single horizontal eye muscles in esotropia and exotropia.

SCHIAVI, COSTANTINO;BOLZANI, ROBERTO;BENASSI, MARIAGRAZIA;CAMPOS, EMILIO
2004

Abstract

A comparison was done between force development in the medial and lateral rectus muscles during saccadic movements in 8 adult patients, 2 with esotropia and 6 with exotropia who underwent surgery under topical anesthesia. Five medial rectus muscles and 8 lateral rectus muscles were studied. Isometric muscle tension was recorded with a strain gauge system from the detached muscle. Patients made saccadic eye movements with the non recorded eye. In the tension signals produced by saccades, peak tension (Fp) and steady tension (Fs) were measured. The values of Fp and Fs at different amplitudes of the saccadic eye movements were compared in the lateral and the medial rectus muscles of patients with esotropia and exotropia. There were no consistent statistical differences between values of Fp and Fs obtained in the two strabismus conditions. The force development was the same in both horizontal eye muscles of patients with esotropia and exotropia.
Transactions 28th European Strabismological Association Meeting
57
61
SCHIAVI C.; BOLZANI R.; LENNERSTRAND G.; TIAN S.; BENASSI M.G.; LONGO N.; CAMPOS E.C.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/9999
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