Table 1.

Deviation in vertical alignment in primary gaze position before and 6 weeks after graded partial tenotomy of vertical rectus muscles for treatment of hypertropia

Patient no.	Preop deviation (PD)	Treated muscle	Postop deviation (PD)	Postop change (PD)	Diagnosis
1	LHT 9	LSR	ORTHO	−9	Cataract
2	RHT 12	RSR	RHT 10	−2	Cataract
3	LHT 10	LSR, RIR	ORTHO	−10	Cataract
4	RHT 3	LIR	ORTHO	−3	CN IV palsy
5	RHT 3	LIR	ORTHO	−3	CN IV palsy
6	LHT 7	RIR	LHT 3	−4	HT
7	LHT 7	RIR	N/A	N/A	Cataract
8	LHT 10	RIR, LSR-Rec	LHT 4	−6	Cataract
8*	LHT 10	RIR, LSR	LHT 9	−1	Cataract
9	LHT 10	RIR	ORTHO	−10	CN IV palsy
10	RHT 1	LIR	ORTHO	−1	Cataract
11	RHT 9	RSR	ORTHO	−9	Cataract
12	RHT 6	RSR	ORTHO	−6	Retinal detachment
13	LHT 2	RIR	ORTHO	−2	CN IV and VI palsy
14	LHT 4	LSR	ORTHO	−4	CN IV and VI palsy
15	RHT 8	RSR	RHT 3	−5	Retinal detachment
16	LHT 6	RIR	LHT 2	−4	Trauma to orbit
17	LHT 16	LSR, RIR	ORTHO	−16	Graves’ disease
18	LHT 8	LSR	LHT 6	−2	HT
19	RHT 7	LIR	ORTHO	−7	Tumor, CN IV palsy
20	RHT 6	LIR	ORTHO	−6	Cataract
21	LHT 6	LSR	LHT 3	−3	HT
22	RHT 22	RSR, LIR-Rec LSR-Res	ORTHO	−22	Cataract
23	LHT 2	LSR	LHT 4	2	Ehlers-Danlos, HT
23*	LHT 8	LSR, RIR	LHT 9	1	Ehlers-Danlos, HT
24	RHT 16	LIR	ORTHO	−16	HT
Average	8 PD		2 PD	−6 PD
95% CI	6-10 PD			1-3 PD	−4 to −8 PD
SD	5 PD		3 PD	6 PD

CI, confidence interval; CN, cranial nerve; HT, long-standing hypertropia; LHT, left hypertropia; LIR, left inferior rectus; LIR-Rec, left inferior rectus recession; LSR, left superior rectus; LSR-Rec, left superior rectus recession; LSR-Res, left superior rectus resection; N/A, not assessed (patient unable to return for 6-week visit); ORTHO, orthotropia; PD, prism diopters; Preop, preoperative; Postop, postoperative; RHT, right hypertropia; RIR, right inferior rectus; RSR, right superior rectus; SD, standard deviation.

^*Second procedure.