Relationship among Dominant Eye & Hand and Deviated Eye under General Anesthesia

PURPOSE: To evaluate the association between ocular dominance, hand dominance and eye deviation in orthophoric and strabismus patients under general anesthesia during surgery. METHODS: The subjects were divided into 2 groups. Group 1 was composed of 38 patients who underwent strabismus surgery and group 2 was composed of 107 patients who underwent non-strabismus surgery under general anesthesia. Best corrected visual acuity (BCVA), dominant hand and fixating eye were obtained before surgery, and ocular dominance was assessed using the hole-in-the-card test. Under general anesthesia, we took a digital photo of both eyes, and the deviating eye was determined. RESULTS: Under general anesthesia, the deviated eye showed no statistically significant correlation to the dominant eye and dominant hand in group I, respectively (p = 0.61, 0.74, respectively). In group II, there was no correlation between the deviated eye and the dominant eye (p = 0.65). The deviated eye also showed no correlation to the dominant hand in group II (p = 0.61). CONCLUSIONS: There was no correlation between the dominant and deviated eye under general anesthesia in the strabismus surgery group and the non-strabismus surgery group. Also, there was no correlation between the dominant hand and the deviated eye in patients under general anesthesia in the 2 groups.

A case of retained wooden foreign body in orbit

A 41-year-old man visited our clinic complaining of esodeviation of the right eye. He had been operated on for corneal laceration 3 years before. One month later, exodeviation of the right eye had developed. The result of computed tomography (CT) was reported as orbital abscess and cellulitis. Although antibiotic treatment was administered for 2 weeks, the exodeviation didn't improve. On ocular examinations performed in our hospital in November-2001, his right eye was esotropic and had a relative afferent pupillary defect. Vision of the right eye was decreased to 0.02. Fundus examination showed optic atrophy. A new CT scan disclosed a foreign body introduced into the right medial orbital wall, nasal cavity and ethmoidal sinus. Although foreign body was surgically removed, vision and eye movement were not improved. In the case of a patient who has undergone orbital trauma, complete history taking and physical examinations must be performed. On suspicion of a foreign body, imaging study such as CT or MRI must be performed. However, because CT findings can be variable, careful follow-up is needed.

The Relationship of Dominant Eye, Dominant Hand, and Deviated Eye in Strabismus

We studied the relationship of deviated eye with dominant eye, dominant hand and visual acuity in 109 horizontal strabismic patients. Control group of 109 normal subjects without strabismus or specific ocular diseases were also examined. Right ocular dominance in normal subjects was noted in 66.1%. Strabismic patients showed ocular dominance of nondeviated eye in 78.5%. The dominance of right hand in normal subjects were noted in 89.0% and those were 82.6% in strabismic patients. Better visual acuity of right eye were noted in 40.4% of normal subjects, and 28.4% in left eye. Equal visual acuity between two eyes were 31.2% of the subjects. Strabismic patients showed better visual acuity in 70.9% of nondevia ted eye. Based on these results, the correlation of nondeviated eye with dominant eye, and better visual acuity were statistically significant(p0.05).