Journals / Glokom Katarakt / 2016 / Cilt: 11 - Sayı: 2

The Importance of Evaluation of Corneal and Internal Astigmatism Before Cataract Surgery

Katarakt Ameliyatı Öncesinde Korneal ve İnternal Astigmatın Değerlendirilmesinin Önemi

Pages
19–21
DOI
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AI Summary & Key Takeaways

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

Otherwise, there may be unexpected surprises about astigmatism postoperatively

📌 3 Key Takeaways

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Objective & Hypothesis:Purpose: To examine the contribution of corneal and lenticular components to total ocular astigmatism in patients who were diagnosed cataract and to emphasize the importance of these components in surgical planning for correcting astigmatism.Materials and Methods: Patients who were examined in Ophthamology service between November 2014 and August 2015 and those who had cataract and required cataract surgery were included in the study.
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Key Findings & Data:Refractive parameter's (corneal astigmatism and total ocular astigmatism) measurements were performed with autorefractoceratometry (Canon RK-F2, Canon USA Inc., Lake Success, NY, USA) (horizontal and vertical power and axis).
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Conclusion & Impact:Otherwise, there may be unexpected surprises about astigmatism postoperatively
🔬Design:Research Article
📍Scope:2014 Verileri
⚙️Variables:Domain Parameters

Abstract

Purpose: To examine the contribution of corneal and lenticular components to total ocular astigmatism in patients who were diagnosed cataract and to emphasize the importance of these components in surgical planning for correcting astigmatism.Materials and Methods: Patients who were examined in Ophthamology service between November 2014 and August 2015 and those who had cataract and required cataract surgery were included in the study. Each study patient underwent a comprehensive ophthalmic examination, which included measurement of best-corrected visual acuity testing, slit-lamp microscopy, intraocular pressure measurement, fundus examination, autorefractometry and keratometry measurements. Refractive parameter's (corneal astigmatism and total ocular astigmatism) measurements were performed with autorefractoceratometry (Canon RK-F2, Canon USA Inc., Lake Success, NY, USA) (horizontal and vertical power and axis). Internal astigmatism was calculated by the subtraction of corneal refraction from the total ocular refraction.Results: The study comprised 57 eyes of 57 patients who were diagnosed as senile cataract. Mean age was 67.2±5.9 years . Twenty-eight patients (49.1%) were male, and the remaining 29 (50.9%) were female. Mean corneal astigmatism was 0.97±0.48 D (range, 0.25-3 D) and mean internal astigmatism was 0.72±0.29 D (range, 0.25-1.50 D). Corneal astigmatism was less than 0.75 D in 43.9% of patients and greater than 0.75 D in 56.1% of patients.Conclusions: There was a high percentage of corneal astigmatism greater than 0.75 D in patents who were candidates for cataract surgery. Cataract surgeons should be aware of corneal and internal astigmatisms before cataract surgery. Otherwise, there may be unexpected surprises about astigmatism postoperatively

Özet

Amaç: Katarakt tanısı almış hastalarda total oküler astigmata korneal ve lentiküler bileşenlerin katkısını incelemek ve astigmatı düzeltmek için cerrahi planlamada bu komponentlerin önemini vurgulamak amaçlandı.Gereç ve Yöntem: Kasım 2014-Agustos 2015 tarihleri arasında göz polikliniğinde muayene olan ve cerrahi gerektiren katarakt tespit edilen hastalar çalışmaya dahil edildi. Her çalışma hastasına düzeltilmiş en iyi görme keskinliği testi, biyomikroskopik bakı, göz içi basıncı ölçümü, fundus muayenesi, otorefraktometre ve keratometri ölçümlerini içeren kapsamlı bir oftalmik muayene yapıldı. Refraktif parametrelerin (korneal ve total astigmatizma) ölçümü otokeratorefraktometri (Canon RK-F2, Canon USA Inc., Lake Success, NY, USA) (horizontal ve vertikal güç ile aks) ile yapıldı. İnternal astigmat total oküler astigmattan, korneal astigmatın çıkarılmasıyla hesaplandı.Bulgular: Çalışmaya senil katarakt tanısı almış 57 hastanın 57 gözü alındı. Ortalama yaş 67.2±5.9 idi (46-86 yıl). 28 hasta (49.1%) erkek ve geri kalan 29'u (50.9%) kadındı. Ortalama korneal astigmat 0.97±0.48 D (0.25-3 D), ortalama internal astigmat 0.72±0.29 D (0.25-1.50 D) idi. Hastaların 43.9%'unda 0.75 D'den daha küçük, 56.1%'sinde ise 0.75 D'nin üzerinde korneal astigmat saptandı. Sonuç: Çalışmamızda, katarakt cerrahisi adayı olan hastalarda yüksek oranda 0.75 D'den büyük korneal astigmat olduğu görüldü. Katarakt cerrahları cerrahi öncesi korneal ve internal astigmatın farkında olmalıdır. Aksi takdirde, operasyon sonrası astigmat ile ilgili beklenmedik sürprizler ortaya çıkabilir

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Cite This Article

KARTI, Ö., KARAHAN, E., TOPALOĞLU, A. S., UYAR, M. (2016). The Importance of Evaluation of Corneal and Internal Astigmatism Before Cataract Surgery. Glokom Katarakt, Cilt: 11 - Sayı: 2, 19–21. https://ajindex.com/articles/226907

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