Quantitative measurement of retinal vascular diameter changes in the early postoperative period after strabismus surgery

Zhou, Jinqiong; Fu, Jing; Li, Jipeng; Wang, Xiaozhen; Wang, Wenying; Zhao, Bowen; Qi, Meng

doi:10.1016/j.jaapos.2017.04.004

Cited by 8 publications

(7 citation statements)

References 16 publications

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“…Zhou et al evaluated the retinal vascular diameter changes after horizontal strabismus surgery. 7 Similarly, they showed that retinal vessel diameter increased in the early postoperative period. In contrast to SCP, we observed no significant difference in VD values of DCP and FAZ area measurements in the operated and fellow eyes.…”

Section: Discussionmentioning

confidence: 92%

“…A previous study showed retinal vascular calibre changes after rectus muscle surgery. 7 In addition, optical coherence tomography (OCT) studies also have revealed structural changes in the choroid which is supplied by posterior ciliary artery branches of the ophthalmic artery. An OCT study demonstrated macular thickening after strabismus surgery that is presumably related to inflammation and retinal-blood alterations.…”

Section: Introductionmentioning

confidence: 99%

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Retinal and choroidal microvasculature is altered after strabismus surgery

Hüseyinhan

Özçalışkan

Gürez

et al. 2022

European Journal of Ophthalmology

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Purpose To evaluate the retinal and choroidal microvasculature after strabismus surgery using swept-source optical coherence tomography angiography (OCTA) Methods Thirty-three eyes of 33 patients who underwent horizontal rectus surgery for strabismus were included in this retrospective study. The unoperated fellow eyes were used as the control group. The macular microvasculature was assessed using a 3 × 3 scan pattern centred on the fovea preoperatively, and one week and one month postoperatively. The vessel density (VD) of superficial capillary plexus (SCP), deep capillary plexus (DCP), and choriocapillaris (CC) were automatically analyzed. The foveal avascular zone (FAZ) was calculated manually using the tool of the device. Results The VD in SCP demonstrated a significant difference between operated and fellow eyes at one week (p = 0.017). Moreover, a significant increase was observed in the mean VD values in SCP of operated eyes after surgery (p = 0.037). The VD in DCP exhibited no significant differences between operated and fellow eyes before and after strabismus surgery. However, there was a significant difference in VD was observed between operated and fellow eyes one week after surgery (p = 0.001). The mean VD in CC was significantly increased in the operated eyes one week after surgery compared to preoperative values (p = 0.006). Conclusion This study revealed that strabismus surgery may cause transient alterations both in retinal and choroidal microcirculation in the early postoperative period.

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Section: Discussionmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Retinal and choroidal microvasculature is altered after strabismus surgery

Hüseyinhan

Özçalışkan

Gürez

et al. 2022

European Journal of Ophthalmology

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“…Strabismus surgery-related retinal hemodynamic changes have been reported in several previous reports. [20][21][22] For operated strabismic eyes, the superficial retinal capillary plexus decreased dramatically and transitorily. Similar to our results, Velez et al, applied OCTA to investigate the vessel filling after strabismus and found the vessel filling of the iris in all quadrants decreased.…”

Section: Discussionmentioning

confidence: 99%

Short-Term changes in Retinal Microvascular Network and Microcirculation after Horizontal Strabismus Surgery

Chen

Lin

et al. 2023

Preprint

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Purpose: To determine the possible effects of horizontal rectus surgery on the fundus microvascular network and microcirculation. Methods: A total of 53 eyes from 53 horizontal strabismus who underwent a recession-resection surgery on monocular eye were included. The densities in the capillary plexus of retinal and the area of the foveal avascular zone (FAZ) were imaged and measured by optical coherence tomography angiography (OCT-A) at baseline and 1 day, 2 weeks and 4 weeks after strabismus surgery. Results: The mean whole superficial capillary plexus (SCP) of reoperation and postoperation were 43.02 ± 3.75, 40.17 ± 4.25,42.25 ± 4.51 and 42.87 ± 4.23%, respectively. There was a statistically significant decrease in the measurement of the whole SCP (p < 0.001). The mean whole deep capillary plexus measurements (DCP) of reoperation and postoperation were 48.83 ± 3.33, 49.13 ± 4.13, 49.42 ± 3.90 and 49.66 ± 3.74%, respectively. There was no statistically significant change in the measurement of the whole DCP (p = 0.427). The mean FAZ measurements of reoperation and postoperation were 0.27 ± 0.09, 0.28 ± 0.11, 0.27 ± 0.09 and 0.27 ± 0.10mm2, respectively. There was no statistically significant change in the measurement of FAZ (p = 0.497). Conclusions: Superficial capillary plexus decreased transitorily in short-term follow-up after strabismus surgery. Such changes would not persist over a long period.

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“…Typically, there is only one ACA on the lateral rectus muscle (LR) while there are two ACAs on the other three rectus muscles [ 1 , 2 ]. The ACAs provide 70–80% of the blood supply to the anterior segment of the eye [ 3 , 4 ]. Strabismus surgery on the rectus muscles may transect the ACAs and result in altered hemodynamics in the anterior segment.…”

Section: Introductionmentioning

confidence: 99%

“…Previously, the changes in ocular hemodynamics after strabismus surgery have been evaluated by colour Doppler ultrasonography (CDI) [ 1–3 , 9 , 10 ], fluorescein angiography [ 11 ] and indocyanine green angiography [ 6 , 12 ], fundus photography [ 4 ]. However, there are conflicting results on whether ocular hemodynamics changes after strabismus surgery on one or two horizontal rectus muscles.…”

Section: Introductionmentioning

confidence: 99%

Changes in retinal and choroidal blood flow after one or two horizontal rectus muscle surgeries by optical coherence tomography angiography

Xiao,

Cao,

Meng

et al. 2023

Annals of Medicine

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Purpose To evaluate the retinal and choroidal microvasculature after one or two horizontal rectus muscle surgeries in strabismus patients using swept-source optical coherence tomography angiography (SS-OCTA). Methods 30 eyes of 26 patients who underwent horizontal rectus muscle surgery were included in this study. Group A, A’ and Group B , B’ respectively consisted preoperative and postoperative measurements of patients who underwent one or two horizontal rectus muscle surgeries. We analyzed the vessel density (VD) of the superficial vascular complex (SVC), the deep vascular complex (DVC), the choriocapillary layer (CC), choroidal vascular index (CVI), choroidal thickness (T-Ch) and retinal nerve fiber layer thickness (T-RNFL) preoperatively, and one week postoperatively. Results Only in the nasal sector of the perifoveal zone, the VD in SVC demonstrated a significant increase in Group A’ ( p = 0.027). There was a statistically significant difference in the VD changes of SVC between Group A and Group B ( p = 0.043). The VD in DVC did not change significantly in the whole macular compared with the preoperative. Moreover, in both Group A’ and Group B’, the VD in CC showed a reduction in a single sector of the parafoveal area ( p < 0.05). Group A’ have increased CVI in the nasal sector of the perifoveal region ( p = 0.008). In addition, the T-Ch increase in the perifoveal region was more significant in Group B’ than in Group A’ ( p < 0.05). Group A’ showed statistically significant decreases in T-RNFL in the foveal and parafoveal regions ( p < 0.05). Conclusion This study revealed that the increase in choroidal thickness was more significant after two rectus muscle surgery. In addition, there were microvascular changes in sectional macular regions after strabismus surgery. OCTA is an excellent way to study the impact of strabismus surgery on the macular structure and blood flow.

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Quantitative measurement of retinal vascular diameter changes in the early postoperative period after strabismus surgery

Cited by 8 publications

References 16 publications

Retinal and choroidal microvasculature is altered after strabismus surgery

Retinal and choroidal microvasculature is altered after strabismus surgery

Short-Term changes in Retinal Microvascular Network and Microcirculation after Horizontal Strabismus Surgery

Changes in retinal and choroidal blood flow after one or two horizontal rectus muscle surgeries by optical coherence tomography angiography

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