Efecto del cerclaje escleral en la cirugía vítreo-retiniana sobre la morfología y biomecánica de la córnea

Ruiz–De-Gopegui, E.; Ascaso, Fj; Buey, M.Á. Del; Cristobal, Ja

doi:10.1016/j.oftal.2011.05.027

Cited by 9 publications

(6 citation statements)

References 32 publications

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“…They also concluded that SB doesn’t alter corneal morphology including CCT. 11 Similar findings were found after PPV, where CCT did not change significantly during whole follow up period. 12 We suggest that the findings of altered CCT are transient in nature only due to mild corneal edema, which eventually returns to normal or pre-operative values after both PPV and SB.…”

Section: Discussionsupporting

confidence: 75%

Change in central corneal thickness, corneal endothelial cell density, anterior chamber depth and axial length after repair of rhegmatogenous retinal detachment

et al. 2017

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Objective:To compare the effects of Pars Plana Vitrectomy (PPV) and Scleral Buckling (SB) with reference to Central Corneal Thickness (CCT), Corneal Endothelial-Cell Density (CED), Anterior Chamber Depth (ACD) and Axial Length (AL) in repair of Rhegmatogenous Retinal Detachment (RRD).Methods:This comparative cross sectional analytical study was conducted at Armed Forces Institute of Ophthalmology (AFIO), Rawalpindi from July 2013 to July 2015. A total of 69 eyes of 69 patients which underwent repair of RRD by either PPV or SB were analyzed to compare mean change in CCT, CED, ACD and AL between two groups.Results:Mean age of patients was 56.23±5.22 years. Mean pre-operative CCT, CED, ACD and AL in PPV group was 533.06±13.28µm, 2231.67±164.57Cells/mm2, 3.37±0.18mm and 23.66±0.76mm respectively. Mean post-operative CCT, CED, ACD and AL in PPV group was 534.81±11.83µm, 2037.19±167.83 Cells/mm2, 3.24±0.13mm and 23.88±0.80mm respectively. Change in CED, ACD and AL from pre-operative value after PPV was statistically significant (p<0.001). Mean pre-operative CCT, CED, ACD and AL in SB group was 530.73±12.59 µm, 2161.79±161.96 Cells/mm2, 3.343±0.14mm and 23.67±0.82mm respectively. Mean post-operative CCT, CED, ACD and AL in SB group was 532.76±7.74 µm, 2158.27±156.58 Cells/mm2, 3.24±0.10mmand 25.71±0.86mm respectively. Change in ACD and AL from pre-operative value after SB was statistically significant (p<0.001). Mean change of CED, ACD and AL between two groups was also statistically significant (p<0.001).Conclusion:Rhegmatogenous retinal detachment repair causes ocular changes, with significantly more decrease in corneal endothelial cell density after pars plana vitrectomy, and more increase in anterior chamber depth and axial length after scleral buckling.

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Section: Discussionsupporting

confidence: 75%

Change in central corneal thickness, corneal endothelial cell density, anterior chamber depth and axial length after repair of rhegmatogenous retinal detachment

et al. 2017

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“…Therefore, the anterior segment resulted as unaltered after the simulation of SB. This conclusion is consistent with the clinical findings of previous studies in the literature [ 4 , 5 ]. Other authors found a significant modification of the anterior chamber depth after the encircling band surgery [ 6 , 7 ] but reported that the anterior chamber depth returned to normal at 1 year after surgery [ 7 ].…”

Section: Discussionsupporting

confidence: 93%

“…The increment of myopic defect observed in eyes that underwent encircling scleral buckle is due to an increase of the anteroposterior axial length caused by circumferential indentation. Some works in the literature [ 4 , 5 ] found that the encircling band surgery does not modify the anterior segment of the eye and therefore the degree of myopia induced during the surgery would be exclusively due to the lengthening of the posterior segment of the eye. Although other authors observed a significant modification of the anterior chamber depth after surgery [ 6 , 7 ], recovery of its normal value in 9–12 months was reported [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

Computational Simulation of Scleral Buckling Surgery for Rhegmatogenous Retinal Detachment: On the Effect of the Band Size on the Myopization

Lanchares

Buey

Cristobal

et al. 2016

Journal of Ophthalmology

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A finite element model (FE) of the eye including cornea, sclera, crystalline lens, and ciliary body was created to analyze the influence of the silicone encircling bandwidth and the tightness degree on the myopia induced by scleral buckling (SB) procedure for rhegmatogenous retinal detachment. Intraocular pressure (IOP) was applied to the reference geometry of the FE model and then SB surgery was simulated with encircling bandwidths of 1, 2, and 2.5 mm. Different levels of tightening and three values of IOP were applied. The anterior segment resulted as unaffected by the surgery. The highest value of Cauchy stress appeared in the surroundings of the implant, whereas no increment of stress was observed either in anterior segment or in the optic nerve head. The initial IOP did not appear to play any role in the induced myopia. The wider the band, the greater the induced myopia: 0.44, 0.88, and 1.07 diopters (D) for the 1, 2, and 2.5 mm bandwidth, respectively. Therefore, patients become more myopic with a wider encircling element. The proposed simulations allow determining the effect of the bandwidth or the tightness degree on the axial lengthening, thus predicting the myopic increment caused by the encircling surgery.

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“…Most series that look at complications of buckling analyze patients who underwent hydrogel implants 19,20 . Finally, radial buckles would probably cause lesser alterations in the morphology and biomechanical properties of the cornea as opposed to encerclage 21 . Encircling surgery can alter corneal hysteresis and corneal resistance factor measurements, although it is not associated with a significant change in corneal morphology 21 .…”

Section: Discussionmentioning

confidence: 99%

“…Finally, radial buckles would probably cause lesser alterations in the morphology and biomechanical properties of the cornea as opposed to encerclage 21 . Encircling surgery can alter corneal hysteresis and corneal resistance factor measurements, although it is not associated with a significant change in corneal morphology 21 . This can lead to altered intraocular pressure measurements and can be avoided with radial buckling surgery.…”

Section: Discussionmentioning

confidence: 99%

Scleral buckling surgery using multiple radial buckles: A valid option?

Sudhalkar

2015

Saudi Journal of Ophthalmology

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Efecto del cerclaje escleral en la cirugía vítreo-retiniana sobre la morfología y biomecánica de la córnea

Cited by 9 publications

References 32 publications

Change in central corneal thickness, corneal endothelial cell density, anterior chamber depth and axial length after repair of rhegmatogenous retinal detachment

Change in central corneal thickness, corneal endothelial cell density, anterior chamber depth and axial length after repair of rhegmatogenous retinal detachment

Computational Simulation of Scleral Buckling Surgery for Rhegmatogenous Retinal Detachment: On the Effect of the Band Size on the Myopization

Scleral buckling surgery using multiple radial buckles: A valid option?

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