Clinical characteristics according to the laterality of ocular torsion in unilateral superior oblique palsy

BMC Ophthalmology

Table 3 Correlation analysis between the amount of preoperative ocular torsion measured by fundus photography and clinical factors

Variable	Ocular torsion (Disc-foveal angle)
Variable	Correlation coefficient	p-value
Age at surgery	−0.007	0.945^b
Gender		0.749^a
Laterality of SOP		0.483^a
Type of SOP		0.777^a
Visual acuity in paretic eyes	−0.148	0.142^b
Visual acuity in nonparetic eyes	−0.068	0.500^b
Spherical equivalent	0.184	0.062^b
Primary vertical deviation	0.106	0.278^b
Maximal vertical deviation	0.244	0.012^b
IO overaction grade	0.394	0.047^b
SO underaction grade	−0.032	0.746^b
Stereopsis (Good/Bad)		0.778^a
Fixation preference		0.317^a
The presence of amblyopia		0.383^a
The presence of horizontal strabismus		0.852^a
The presence of DVD		0.223^a
The presence of head tilt		0.947^a
Type of IO weakening surgery		0.411^a

^a Wilcoxon rank sum test
^b Spearman correlation analysis
SOP superior oblique palsy, IO inferior oblique, SO superior oblique, DVD disassociated vertical deviation

ISSN: 1471-2415