BMC ophthalmology · 2025
Evaluating ocular torsion following inferior oblique weakening in superior oblique palsy: a pilot study using color fundus photography and spectral domain optical coherence tomography.
СтатьяНазвание и аннотация: Перевод в очереди
Обработка статьи · этапы, ошибки и управление
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Abri Aghdam Kaveh, Katiraee Afsane, Chaibakhsh Samira, Soltan Sanjari Mostafa, Miraftabi Arezoo, Nadjafi Fateme, Sadeghi Ali, Zare Hosseinabadi Vahid, Zand Amin
Аннотация
PURPOSE: To compare spectral domain optical coherence tomography (OCT) and color fundus photography (CFP) for assessing ocular cyclotorsion in unilateral congenital superior oblique palsy (SOP) before and after inferior oblique disinsertion.
METHODS: This prospective pilot study evaluated 18 patients (36 eyes) with unilateral congenital SOP. Disc-foveal angle (DFA) was measured preoperatively and 3 months postoperatively using CFP (analyzed with ImageJ) and Spectralis OCT (with FoDi software). Contralateral nonparetic eyes served as controls.
RESULTS: Preoperative hypertropia (14.31 ± 4.15 prism diopter, PD) significantly improved postoperatively (1.46 ± 1.98 PD, P < 0.001). CFP measurements showed significantly greater cyclotorsion in paretic versus nonparetic eyes preoperatively (P = 0.001), while OCT revealed no inter-eye difference (P = 0.295). In paretic eyes, CFP-derived DFAs were significantly higher than OCT values both preoperatively (12.26 ± 4.72° vs. 8.87 ± 4.56°, P = 0.002) and postoperatively (7.25 ± 5.18° vs. 4.33 ± 3.98°, P = 0.005). Nonparetic eyes showed no significant inter-method differences at either timepoint (all P > 0.05). Inter-method reliability was moderate preoperatively (ICC = 0.693 paretic, 0.657 nonparetic) and improved postoperatively (ICC = 0.718 and 0.921, respectively). Bland-Altman analysis demonstrated narrowing limits of agreement postoperatively (nonparetic: 8.48° to 4.40°; paretic: 7.97° to 7.50°), with no systematic bias.
CONCLUSION: Spectralis OCT with FoDi software provides a clinically useful alternative to CFP for cyclotorsion assessment in congenital SOP, though it may systematically underestimate DFA values in paretic eyes.
METHODS: This prospective pilot study evaluated 18 patients (36 eyes) with unilateral congenital SOP. Disc-foveal angle (DFA) was measured preoperatively and 3 months postoperatively using CFP (analyzed with ImageJ) and Spectralis OCT (with FoDi software). Contralateral nonparetic eyes served as controls.
RESULTS: Preoperative hypertropia (14.31 ± 4.15 prism diopter, PD) significantly improved postoperatively (1.46 ± 1.98 PD, P < 0.001). CFP measurements showed significantly greater cyclotorsion in paretic versus nonparetic eyes preoperatively (P = 0.001), while OCT revealed no inter-eye difference (P = 0.295). In paretic eyes, CFP-derived DFAs were significantly higher than OCT values both preoperatively (12.26 ± 4.72° vs. 8.87 ± 4.56°, P = 0.002) and postoperatively (7.25 ± 5.18° vs. 4.33 ± 3.98°, P = 0.005). Nonparetic eyes showed no significant inter-method differences at either timepoint (all P > 0.05). Inter-method reliability was moderate preoperatively (ICC = 0.693 paretic, 0.657 nonparetic) and improved postoperatively (ICC = 0.718 and 0.921, respectively). Bland-Altman analysis demonstrated narrowing limits of agreement postoperatively (nonparetic: 8.48° to 4.40°; paretic: 7.97° to 7.50°), with no systematic bias.
CONCLUSION: Spectralis OCT with FoDi software provides a clinically useful alternative to CFP for cyclotorsion assessment in congenital SOP, though it may systematically underestimate DFA values in paretic eyes.