Journal of pediatric ophthalmology and strabismus
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J Pediatr Ophthalmol Strabismus · Sep 2014
Effect of general anesthesia and muscle relaxants on keratometry measurements using a handheld keratometer.
Keratometry measurements are often obtained under general anesthesia in the supine position in difficult patients and pediatric procedures. This study investigates the effect of general anesthesia and muscle relaxants on keratometry readings using a handheld keratometer. ⋯ Keratometry readings using the handheld keratometer obtained under general anesthesia were as reliable as readings obtained in the awake state, regardless of posture; administration of muscle relaxants at induction may produce flatter keratometry readings.