Influence of rectus eye muscles tenotomy on the aqueous humor composition in rabbits.

INTRODUCTION

Anterior segment ischaemia manifesting in aqueous malformation may follow tenotomy of the extraocular muscles.

MATERIAL AND METHODS

Tenotomy of 2 or 4 rectus eye muscles was performed on the right eyes of 23 adult rabbits. The aqueous humor was withdrawn from the anterior chamber of both eyes in 7 rabbits on the 11th, on the 22nd in 8 and on the 32nd postoperative day in 8 rabbits. Aqueous natrium, potassium and glucose concentrations and protein electrophoresis were examined.

RESULTS

The only significant change was lower mean aqueous potassium concentration in the operated eyes as compared to controls on the 11th postoperative day.

CONCLUSION

Tenotomy of rectus eye muscles in healthy rabbits evoked a discrete blood-aqueous barrier break-down.