Refractive change after pars plana vitrectomy

Tseng, Po-Chen; Woung, Lin-Chung; Tseng, Gow-Lieng; Tsai, Ching‐Yao; Chou, Hsin-Kai; Chen, Chun‐Chen; Liou, Shiow‐Wen

doi:10.1016/j.tjo.2011.11.003

Cited by 6 publications

(8 citation statements)

References 16 publications

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“… 3 Lens-sparing vitrectomy often results in postoperative formation of nuclear sclerotic cataracts. 4 – 8 Because nuclear sclerotic cataracts frequently affect refraction of the eye, shifting it toward myopic in the majority of cases, 9 , 10 symptoms of anisometropia should be carefully monitored after vitrectomy. This myopic shift can be useful for subjectively grading the rate of progression of nuclear sclerotic cataracts.…”

Section: Introductionmentioning

confidence: 99%

Refractive changes after lens-sparing vitrectomy for macular hole and epiretinal membrane

Muto¹,

Nishimura²,

Yamaguchi³

et al. 2017

OPTH

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PurposeCataract progression after lens-sparing vitrectomy might differ according to original posterior segment diseases. Our objective was to analyze the refractive values after lens-sparing vitrectomy for macular hole (MH) and epiretinal membrane (ERM).Materials and methodsWe reviewed the medical records of 25 MH patients (25 eyes) and 23 ERM patients (23 eyes) who underwent lens-sparing vitrectomy. Refractive changes in both groups were compared. All patients underwent 20-gauge three-port pars plana vitrectomy. Fluid–air exchange was performed during vitrectomy only in the MH group. The results were analyzed using the unpaired t-test, chi-square test, or Fisher exact probability test, and multivariate analysis.ResultsThere were no significant differences in the patient’s age (P=0.45). The myopia progression rate (D/month) was higher in the MH group after surgery than that in the ERM group (P=0.035). MH group had more females (P=0.043), longer surgical time (P<0.001), and higher frequencies of surgical adjuvants use (triamcinolone acetonide, P=0.019; brilliant blue G, P<0.001). The myopia progression rate in the MH group (R=0.568, P<0.001) correlated with female gender. However, no correlation was observed between longer surgical time and the use of surgical adjuvants.ConclusionThe rate of myopia progression was higher in the MH group. Fluid–air exchange and gender may affect the rate of myopia progression.

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Section: Introductionmentioning

confidence: 99%

Refractive changes after lens-sparing vitrectomy for macular hole and epiretinal membrane

Muto¹,

Nishimura²,

Yamaguchi³

et al. 2017

OPTH

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“…7 A study in Taiwan described significant changes in refractive status after primary PPV in both phakic and pseudophakic eyes. 8 However, the study was not able to describe the reason for such changes.…”

Section: Introductionmentioning

confidence: 93%

“…However, several studies have reported refractive changes between -0.26 D and -1.21 D after plain primary PPV without buckling or silicone oil tamponade. [6][7][8][9][10] Byrne et al reported significant spherical equivalent (SE) changes after 20-gauge PPV in pseudophakic eyes for various diseases. 7 A study in Taiwan described significant changes in refractive status after primary PPV in both phakic and pseudophakic eyes.…”

Section: Introductionmentioning

confidence: 99%

Ocular biometry and refractive changes post sutureless vitrectomy surgery

othman

2019

MyJO

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Introduction: Pars plana vitrectomy (PPV) without endotamponade should not induce significant change to the refractive status of the eye. However, several studies have reported minor refractive changes after plain vitrectomy. Purpose: To compare the changes in refraction following PPV and to examine the biometry parameters that may affect the refractive change.Materials and methods: In this prospective cohort study, patients who were listed for 23-gauge 3-port PPV without buckling or silicone oil tamponade were enrolled between December 2015 and September 2017. Autorefraction, keratometry, anterior chamber depth (ACD), and axial length (AL) were measured preoperatively and three months postoperatively.Results: This study involved 41 eyes from 38 patients. The mean spherical equivalent (SE) before PPV was -1.08 dioptres (D), (standard deviation (SD) 2.18), which changed to a mean of -1.88 D (SD 2.20) postoperatively. The mean SE change was -0.80 D (SD 1.61, 95% confidence interval (CI) -1.31 to 0.30 D, P = 0.003). The median astigmatism before PPV was 0.69 D (Interquartile range (IQR) 0.69 D) reduced to 0.66 D (IQR 0.60 D) after PPV (P = 0.882). Median ACD preoperatively was 3.55 mm (IQR 0.76 mm) and reduced postoperatively to 3.44 mm (IQR 0.67 mm), (P = 0.028). The median AL was 23.36 mm (IQR 1.42 mm) and 23.48 mm (IQR 1.56 mm) before and after PPV, respectively, (P = 0.029). No significant SE change was found between phakic and pseudophakic groups (P = 0.155).Conclusion: Patients experience myopic shift post plain PPV, possibly due to the reduction of ACD. The ACD tended to be shorter in the pseudophakic group, suggesting that the myopic shift in the phakic group may be a result of the development of nuclear sclerosis cataract.

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“… [9] However, there are few reports describing a myopic shift following surgery. Tseng et al [10] were the first to report on a myopic shift after lens-sparing vitrectomy; however, the study did not involve longitudinal evaluation. Okamoto et al [11] evaluated refractive changes following lens-sparing vitrectomy for rhegmatogenous retinal detachment (RRD) and found that a significant myopic progression occurred from the early postoperative period.…”

Section: Introductionmentioning

confidence: 99%