Journals / Glokom Katarakt / 2009 / Cilt: 4 - Sayı: 3

Histopathological effects of trypan blue staining of the lens capsule before capsulorhexis in eyes with pseudoexfoliation syndrome

Psödoeksfoliyasyon sendromlu gözlerde kapsüloreksis öncesinde tripan mavisi kullanımının kapsül üzerindeki histopatolojik etkileri

Pages
143–149
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Overall, there was a statistically significant relation between capsule staining and epithelial degeneration (p=0.009).

📌 3 Key Takeaways

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Objective & Hypothesis:Amaç: To investigate the histopathological effects of trypan blue staining of the lens capsule before phacoemulsification to facilitate capsulorhexis in cataractous eyes with and without pseudoexfoliation (PEX).
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Key Findings & Data:Materials and Methods: In two groups of cataract patients one of which consisted of 20 cases with PEX and the other including 20 cases without PEX, two subgroups were formed with 10 patients in which trypan blue (TB) staining was performed before capsulorhexis and with remaining 10 patients unstained.
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Conclusion & Impact:Overall, there was a statistically significant relation between capsule staining and epithelial degeneration (p=0.009).
🔬Design:Research Article
📍Scope:3 specimens
⚙️Variables:Domain Parameters

Abstract

Amaç: To investigate the histopathological effects of trypan blue staining of the lens capsule before phacoemulsification to facilitate capsulorhexis in cataractous eyes with and without pseudoexfoliation (PEX). Materials and Methods: In two groups of cataract patients one of which consisted of 20 cases with PEX and the other including 20 cases without PEX, two subgroups were formed with 10 patients in which trypan blue (TB) staining was performed before capsulorhexis and with remaining 10 patients unstained. Therefore, four groups were established as follows: Group 1 (PEX-, TB-), Group 2 (PEX+, TB-), Group 3 (PEX-, TB+), and Group 4 (PEX+, TB+). Capsule specimens were examined histopathologically with light microscope using Hematoxylin-Eosine, Trichrome, and Periodic Acid Schiff dyes, in addition to an immunohistochemical staining with Collagen 4. Results: Damage in the collagen structure was not detected in any group. No change in epithelial cell histology was found in Group1, however, epithelial degeneration was revealed in 3 eyes in Group 2, in 5 eyes in Group 3, and in 7 eyes in Group 4. (p=0.006). Epithelial degeneration grades were mild in Groups 2 and 3, while in the group with PEX and TB staining (Group 4), the grades of damage were mild in 3 specimens (30%), moderate in 2 specimens (20%), and severe in 3 (30%). Overall, there was a statistically significant relation between capsule staining and epithelial degeneration (p=0.009). Conclusion: TB capsule staining results in epithelial degeneration in normal eyes, and worsens the degree of the existing degeneration in eyes with PEX.

Özet

Amaç: Psödoeksfoliyasyon (PEX) sendromu bulunan ve bulunmayan kataraktlı gözlerde, fakoemülsifikasyon öncesinde, kapsüloreksisi kolaylaştırmak amacıyla tripan mavisi (TM) kullanımının lens kapsülündeki histopatolojik etkilerinin araştırılması. Gereç ve Yöntemler: PEX bulunan ve bulunmayan 20’şer olgudan oluşan iki grup katarakt hastasından, 10’unda kapsüloreksis sırasında TM kullanılan, 10’unda ise kullanılmayan 2’şer alt grup ile toplam 4 hasta grubu oluşturuldu. Grup 1; PEX (-), TM (-), Grup 2; PEX (+), TM (-), Grup 3; PEX (-), TM (+), Grup 4 ise PEX (+), TM (+) olguları içermekteydi. Kapsül örnekleri ışık mikroskobisinde Hematoksilen-Eozin, Trikrom ve Periyodik Asit Schiff boyama teknikleri ile histopatolojik olarak, Kollajen 4 ile immünhistokimyasal olarak incelendi. Bulgular: Hiçbir grupta kollajen yapıda bozulma saptanmadı. Grup1’de epitel hücrelerinde değişiklik bulunmazken, Grup 2’de 3, Grup 3’de 5, Grup 4’de 7 örnekte epitel dejenerasyonu izlendi (p=0.006). Epitel hasar düzeyi Grup 2 ve 3’de hafif derecedeyken, boya uygulanan PEX’li grupta (Grup 4) örneklerin 3’ünde (%30) hafif, 2’sinde (%20) orta, 3’ünde (%30) ise ağır derecede epitel dejenerasyonu saptandı (p=0.003). Genel olarak, boya kullanımı ile epitel dejenerasyonu arasındaki ilişki istatistiksel açıdan anlamlı bulundu (p=0.009). Sonuç: TM kullanımının normal gözlerde lens epitelinde dejenerasyona neden olduğu, PEX’li gözlerde ise mevcut olan dejenerasyonun şiddetini arttırdığı sonucuna varıldı.

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Cite This Article

ARIKAN, Ö., YARANGÜMELİ, A. A., AKYÜREK, N., KURAL, G. (2009). Histopathological effects of trypan blue staining of the lens capsule before capsulorhexis in eyes with pseudoexfoliation syndrome. Glokom Katarakt, Cilt: 4 - Sayı: 3, 143–149. https://ajindex.com/articles/226614

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