Journals / Glokom Katarakt / 2017 / Cilt: 12 - Sayı: 3

Evaluation of The Visual Function by Flash Visual Evoked Potentials in Patients with Congenital Cataract

Konjenital Kataraktı Olan Hastalarda Görme Fonksiyonunun Flaş Görsel Uyarılmış Potansiyeller ile Değerlendirilmesi

Pages
38–40
DOI
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AI Summary & Key Takeaways

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⚡ TL;DR(Too Long; Didn't Read)

All patients experienced fi xational eye movements and voluntarily directed saccades postoperatively.Conclusion: Preoperative fVEP recording, albeit prone to recording diffi culties, may be a valuable test in the assessment of visual function but low amplitudes and delayed latencies seem not to predict worse visual outcome and should not affect surgical decision.

📌 3 Key Takeaways

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Objective & Hypothesis:Purpose: To evaluate the visual function by fl ash Visual Evoked Potentials (fVEP) in patients with congenital cataract prior to surgery and to discuss the value of fVEP in predicting the visual potential.Materials and methods: The medical records of patients with congenital cataract who had reliable preoperative fVEP recordings were reviewed.
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Key Findings & Data:The N2 and P2 latencies and P2 amplitudes were evaluated.
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Conclusion & Impact:All patients experienced fi xational eye movements and voluntarily directed saccades postoperatively.Conclusion: Preoperative fVEP recording, albeit prone to recording diffi culties, may be a valuable test in the assessment of visual function but low amplitudes and delayed latencies seem not to predict worse visual outcome and should not affect surgical decision.
🔬Design:Review & Systematic Survey
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Purpose: To evaluate the visual function by fl ash Visual Evoked Potentials (fVEP) in patients with congenital cataract prior to surgery and to discuss the value of fVEP in predicting the visual potential.Materials and methods: The medical records of patients with congenital cataract who had reliable preoperative fVEP recordings were reviewed. The fVEP was recorded prior to lensectomy and anterior vitrectomy. The N2 and P2 latencies and P2 amplitudes were evaluated. The preoperative and postoperative patients' characteristics including qualitative visual performance evaluation and accompanying ocular and systemic problems were recorded. Results: Thirty-one eyes of 17 children were enrolled in the study. Three patients underwent unilateral surgery. The mean age of surgery was 6.76±5.69 months . Preoperative ophthalmological evaluation of the patients revealed no fi xational ocular movement. The mean preoperative N2 latency was 92.46±19.91 ms, P2 latency was 123.72±25.69 ms and P2 amplitude was 7.49±4.98 ?V. Seven patients had systemic diseases. Nine (52.9%) patients had nystagmus preoperatively. There was no signifi cant difference of N2 and P2 latencies and P2 amplitudes among patients with and without systemic diseases (p>0.05 for all). All patients experienced fi xational eye movements and voluntarily directed saccades postoperatively.Conclusion: Preoperative fVEP recording, albeit prone to recording diffi culties, may be a valuable test in the assessment of visual function but low amplitudes and delayed latencies seem not to predict worse visual outcome and should not affect surgical decision.

Özet

Amaç: Konjenital kataraktı olan hastalarda fl aş Görsel Uyarılmış Potansiyeller (fGUP) ile cerrahi öncesinde görme fonksiyonunu değerlendirmek ve görme potansiyelini öngörmede fGUP'un değerini tartışmak. Gereç ve yöntemler: Ameliyat öncesi güvenilir fGUP kayıtları olan konjenital katarakt hastalarının tıbbi kayıtları gözden geçirildi. fGUP lensektomi-ön vitrektomi öncesinde kaydedildi. N2 ve P2 latansları ile P2 amplitüdleri değerlendirildi. Niteliksel görme performansı değerlendirmesini içeren ameliyat öncesi ve sonrası hasta özellikleri ve eşlik eden oküler ve sistemik sorunlar kaydedildi. Results: On yedi hastanın 31 gözü çalışmaya dahil edildi. Üç hastaya tek tarafl ı cerrahi yapıldı. Ortalama cerrahi yaşı 6,76±5,69 ay (224) idi. Hastaların ameliyat öncesi oftalmolojik değerlendirmesinde hiçbir fi ksasyonel hareket izlenmedi. Ameliyat öncesi ortalama N2 latansı 92,46±19,91 ms, P2 latansı 123,72±25,69 ms ve P2 amplitüdü 7,49±4,98 ?V idi. Yedi hastanın sistemik hastalığı vardı. Dokuz (%52.9) hastanın ameliyat öncesinde nistagmusu vardı. Sistemik hastalığı olan ve olmayan hastalar arasında N2 ve P2 latansları ve P2 amplitüdleri açısından anlamlı fark yoktu (p>0.05 for all). Tüm hastalarda ameliyat sonrasında fi ksasyonel göz hareketi ve istemli sakkadlar mevcuttu.

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Cite This Article

ŞEKEROĞLU, H. T., TURAN, K. E., KARAHAN, S., SANAÇ, A. Ş. (2017). Evaluation of The Visual Function by Flash Visual Evoked Potentials in Patients with Congenital Cataract. Glokom Katarakt, Cilt: 12 - Sayı: 3, 38–40. https://ajindex.com/articles/177739

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