Journals / Glokom Katarakt / 2008 / Cilt: 3 - Sayı: 4

The mid-peripheral lens thickness in astigmatism

Astigmatizmada mid-periferik lens kalınlığı

Pages
236–240
DOI
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AI Summary & Key Takeaways

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

Conclusion: There is no significant relationship between astigmatism and mid-peripheral lens thickness.

📌 3 Key Takeaways

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Objective & Hypothesis:Purpose: To investigate the relationship between astigmatism and mid-peripheral lens thickness.
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Key Findings & Data:Materials and Methods: Twenty-six eyes of 19 subjects (10 men, 9 women) with astigmatism (>3.00 D) were included into this prospective study.
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Conclusion & Impact:Conclusion: There is no significant relationship between astigmatism and mid-peripheral lens thickness.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Lensler · Kornea topografisi · Kırma

Abstract

Purpose: To investigate the relationship between astigmatism and mid-peripheral lens thickness. Materials and Methods: Twenty-six eyes of 19 subjects (10 men, 9 women) with astigmatism (>3.00 D) were included into this prospective study. The mean age of the subjects was 28.8±5.9 years (range: 16 to 39 years). The lens thicknesses of all eyes were evaluated with rotating Scheimpflug imaging system (Pentacam, Oculus GmBH, Germany). The lens thickness measurements were made on lines parallel to the antero-posterior axis from the center of the lens to the mid-periphery with 1 mm intervals. The lens thickness measurements obtained on the steep axis were compared to those obtained on the flat axis. Results: In 26 eyes, the mean spherical equivalent was -0.53±2.83 D (range: -4.63 D-5.38 D), the mean cylinder was 4.28±0.90 (range: 3.00-6.50) D. The mean keratometry was 43.9±0.7 (range: 42.6-45.2) D and 40.6±0.7 (range: 39.3-42.2) D on the steep and flat axes, respectively. The mean corneal astigmatism was 3.3±0.5 D (range: 2.8-4.9 D) and the mean lenticular astigmatism was 0.78±0.76 D (range: 0.11-1.36 D). No significant difference was observed between the mid-peripheral lens thicknesses on steep and flat axes (p>0.05). There was no significant correlation between the difference in lens thickness on the steep and flat axes and the difference in keratometry on the steep and flat axes (p>0.05), cylindric refraction, and lenticular astigmatism. Conclusion: There is no significant relationship between astigmatism and mid-peripheral lens thickness.

Özet

Amaç: Astigmatizma ile mid-periferik lens kalınlığı arasındaki ilişkinin değerlendirilmesi. Gereç ve Yöntem: Üç dioptriden yüksek astigmatı olan 19 olgunun 26 gözü bu prospektif çalışmaya dahil edildi. Ondokuz olgunun 10’u erkek, 9’u kadındı. Olguların ortalama yaşları 28.8±5.9 yıl (16-39 yıl) idi. Tüm gözlerin lens kalınlıkları siklopentolat %1 ve fenilefrin %0.5 damlatılması sonrasında Pentacam Scheimpflug sistemi (Oculus GmbH, Wetzlar, Almanya) ile incelendi. Lens ekvator çizgisini temsil eden bir çizgi üzerinde merkezden başlayarak çevreye doğru 1 mm aralıklarla periferik lens kalınlık ölçümü yapıldı. Aynı gözde dik aksta elde edilen lens kalınlık ölçümleri ile düz aksta elde edilen lens kalınlık ölçümleri karşılaştırıldı. Bulgular: Yirmi altı gözde ortalama sferik eşdeğer -0.53±2.83 D (-4.63 D-+5.38 D), ortalama astigmatizma 4.28±0.90 D (3.00-6.50 D) idi. Ortalama keratometri değerleri dik aksta 43.9±0.7 D (42.6 D-45.2 D), düz aksta 40.6±0.7 D (39.3 D-42.2 D) idi. Ortalama korneal astigmatizma 3.3±0.5 D (2.8 D-4.9 D), ortalama lentiküler astigmatizma 0.78±0.76 D (0.11 D-1.36 D) idi. Ortalama midperiferik lens kalınlıkları açısından dik ve düz aks grupları arasında anlamlı bir fark gözlenmedi (p>0.05). Dik ve düz akslarda elde edilen lens kalınlıkları arasındaki farklar ile dik ve düz akslardaki keratometri değerleri arasındaki farklar, silindrik refraksiyon ve lentiküler astigmatizma değerleri arasında anlamlı bir korelasyon bulunmadı. (p>0.05). Sonuç: Astigmatizma ile mid-periferik lens kalınlığı arasında belirgin bir ilişki yoktur.

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Cite This Article

MÜFTÜOĞLU, O., UÇAKHAN, Ö. Ö., KANPOLAT, A. (2008). The mid-peripheral lens thickness in astigmatism. Glokom Katarakt, Cilt: 3 - Sayı: 4, 236–240. https://ajindex.com/articles/226869

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