A Prospective Study of Binocular Visual Function before and after Successful Surgery to Remove a Unilateral Epiretinal Membrane

Asaria, Riaz; Garnham, L.; Gregor, Zdeněk; Sloper, John J.

doi:10.1016/j.ophtha.2008.05.020

Cited by 73 publications

(56 citation statements)

References 29 publications

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“…The predictive value of preoperative BCVA for postoperative BCVA has been reported several times with consistent results [1,5,6,7,8,9,13,17,21]. Our results show a similar association indicating that preoperative BCVA is a reproducible prognostic factor for postoperative BCVA.…”

Section: Discussionsupporting

confidence: 91%

“…Although predictive values of some factors have been reproduced in different studies, substantial variation in results exists. Duration of symptoms has been studied as determinant for postoperative outcome [1,5,7,8,14,18,21,22,23]. Similar to other studies [19,22,23], we did not find an association between duration of symptoms and postoperative VA. A possible explanation could be the subjective nature of these symptoms with unreliable estimation of symptom duration [14].…”

Section: Discussionsupporting

confidence: 85%

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Prognostic Factors Associated with Visual Outcome after Pars Plana Vitrectomy with Internal Limiting Membrane Peeling for Idiopathic Epiretinal Membrane

Laban¹,

Scheerlinck²,

Leeuwen³

2015

Ophthalmologica

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Purpose: Pars plana vitrectomy with internal limiting membrane peeling for idiopathic epiretinal membrane has shown varying results. More data are needed on the factors associated with visual outcome. Methods: We extracted baseline clinical characteristics, optical coherence tomography (OCT) characteristics and 3-month postoperative best-corrected visual acuity (BCVA). Linear regression analysis was used to evaluate whether baseline and OCT characteristics are associated with BCVA at 3 months as well as BCVA difference. Results: Out of 82 operated eyes, 66 (80%) had a 3-month follow-up, and 47 (71%) showed a 3-month postoperative improvement. Preoperative BCVA was an independent determinant of postoperative BCVA (r = 0.31; p < 0.01) and BCVA difference (r = 0.68; p < 0.01). Other baseline and OCT characteristics showed no independent associations with postoperative outcome. Conclusion: Better preoperative BCVA predicts better postoperative BCVA. Other baseline and OCT characteristics are not associated with visual outcome 3 months after surgery.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionsupporting

confidence: 85%

Prognostic Factors Associated with Visual Outcome after Pars Plana Vitrectomy with Internal Limiting Membrane Peeling for Idiopathic Epiretinal Membrane

Laban¹,

Scheerlinck²,

Leeuwen³

2015

Ophthalmologica

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“…13 Furthermore, ERMs are known to cause aniseikonia with improvement in stereoacuity following ERM removal, especially if performed early. 17,18 There is conflicting opinion regarding the timing of ERM removal. This study, one of the largest published series, demonstrates that earlier intervention (better preoperative VA) yields a better final VA.…”

Section: Discussionmentioning

confidence: 99%

Visual acuity outcomes following surgery for idiopathic epiretinal membrane: an analysis of data from 2001 to 2011

Dawson

Shunmugam

Williamson

2013

Eye

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Purpose Pars plana vitrectomy (PPV) is commonly used to remove the epiretinal membrane (ERM), but the timing of surgical intervention guided by visual acuity (VA) performance at presentation is uncertain. Patients and methods Prospectively entered clinical data of 237 patients on an electronic patient record from 2001 to 2011 were analysed to determine visual outcomes, in particular in relation to pre-operative VA.Results The mean age of the patients was 68.8 years and 54.4% were female. Median follow-up was 0.55 years. The median pre-operative logMAR VA was 0.60 (SD 0.48-0.78, Snellen equivalent 6/36) and post-operative VA was 0.30 (SD 0.18-0.60, 6/12, Po0.005). Pre-operative VA correlated with post-operative VA (linear R 2 ¼ 0.22, Po0.0001). In all, 69.6% of patients showed an improvement in VA, 15.2% showed no change, and the condition of 15.2% worsened. The number of patients with an improvement in logMAR VA of more than 0.3 was greatest in those who had a pre-operative VA of 1.0 (6/60) or worse, followed by those in the range of 0.6-0.9 and then those with preoperative VA of 0.5 or better (Po0.001). The proportion of patients with visual improvement of logMAR VA of more than 0.3 increased statistically with progressing years (P ¼ 0.019). Conclusion In conclusion, this study shows improvement in VA after PPV and ERM removal. Patients with better initial VA achieve higher levels of visual outcome but those with poorer pre-operative VA show a greater change in VA following ERM surgery. Results of surgery improved over the time period of the study.

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“…This finding suggests that functional recovery primarily depends on the preoperative status and early intervention. 18 In recent studies, prolonged macular traction is known to cause irreversible photoreceptor cell loss and disruption of alignment. 17,[19][20][21] Outer retinal structures rarely return to normal once they are impaired, thus indicating a poor visual prognosis.…”

Section: Eyementioning

confidence: 99%

Improvement of horizontal macular contraction after surgical removal of epiretinal membranes

Yang

Kim

Jung

et al. 2011

Eye

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Purpose To determine whether horizontal macular contraction caused by epiretinal membranes (ERMs) improves after surgical removal. Methods In this prospective, single-center, observational study, 63 consecutive patients with unilateral idiopathic ERM in one eye and no retinal disease in the fellow eye underwent pars plana vitrectomy. Fundus photography and optical coherence tomography (OCT) were performed preoperatively and at 3 months postoperatively. The area enclosed by superior and inferior major vessels from the optic disc to the fovea (area under major vessel (AUV)) and the macroscopic diverging angle (MDA) between superior and inferior major vessels were calculated using digital image analysis of fundus photographs and compared pre-and postoperatively. Results AUV was significantly smaller in the eyes with ERM compared with the normal fellow eyes (Po0.001). Significant postoperative change in AUV and MDA was demonstrated after ERM removal (Po0.001). However, postoperative AUV of grade 2 and 3 ERM eyes was still significantly smaller than that of normal fellow eyes. Macular thickness differences measured with stratus OCT were positively correlated with AUV differences. Conclusions Retinal topographic changes caused by ERM improved in part after ERM removal. The improvement of topographic changes were correlated with tomographic changes detected with OCT.

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A Prospective Study of Binocular Visual Function before and after Successful Surgery to Remove a Unilateral Epiretinal Membrane

Cited by 73 publications

References 29 publications

Prognostic Factors Associated with Visual Outcome after Pars Plana Vitrectomy with Internal Limiting Membrane Peeling for Idiopathic Epiretinal Membrane

Prognostic Factors Associated with Visual Outcome after Pars Plana Vitrectomy with Internal Limiting Membrane Peeling for Idiopathic Epiretinal Membrane

Visual acuity outcomes following surgery for idiopathic epiretinal membrane: an analysis of data from 2001 to 2011

Improvement of horizontal macular contraction after surgical removal of epiretinal membranes

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