Journals / MN Oftalmoloji / 2007 / Cilt: 14 - Sayı: 3

Contrast sensitivity results in strabismic and anisometropic amblyopes

Şaşı ve anizometropik ambliyopili hastalarda kontrast duyarlılık sonuçları

Pages
174–176
DOI
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AI Summary & Key Takeaways

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

Decrease of contrast sensitivity levels parallel to decreasing visual acuity was shown in our study.

📌 3 Key Takeaways

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Objective & Hypothesis:Aim: To evaluate the relationship between visual acuity and contrast sensitivity in strabismic and anisometric amblyopic cases.
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Key Findings & Data:Material and methods: Uncorrected and corrected visual acuity was measured with snellen chart in 10 strabismic amblyopes , 10 anisometric amblyopes and 10 normal control subjets in.
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Conclusion & Impact:Decrease of contrast sensitivity levels parallel to decreasing visual acuity was shown in our study.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Görme keskinliği · Göz tembelliği · Şaşılık

Abstract

Aim: To evaluate the relationship between visual acuity and contrast sensitivity in strabismic and anisometric amblyopic cases. Material and methods: Uncorrected and corrected visual acuity was measured with snellen chart in 10 strabismic amblyopes , 10 anisometric amblyopes and 10 normal control subjets in. Contrast sensitivity was tested monocularly with ‘Functional Acuity Contrast Test’. ‘Correlation analysis’ and ‘chi square’ was used for statistical analysis. Results: Mean age was 9.92±3.42 (7-16 ) years in strabismic ambliyopic patients; 10.16±3.84 (6- 13) years in anisometropic ambliyope and 12.30±4.03 (9-18 ) years in control group. Mean corrected visual acuity was 0.44 in strabismic ambliyopes and 0.37 in anisometric ambliyopes. There was no statistically significant difference between two groups view of mean age and visual acuity (p>0.05). Mean contrast sensitivity value was 70.1 in strabismic amblyopes, 71.2 in anisometric amblyopes (p>0.05). Decreased contrast sensitivity in all spatial frequencies were measured in 60% of strabismic amblyopes and 50% of anisometric amblyopes (p>0.05 ). Contrast sensitivity was normal in all spatial frequencies in control group. Conclusion: There was no statistically significant difference between strabismic and anisometric amblyopes in the point of view contrast sensitivity value. Decrease of contrast sensitivity levels parallel to decreasing visual acuity was shown in our study.

Özet

Amaç: Şaşı ve anizometropik ambliyopisi olan olgularda görme keskinliği ve kontrast duyarlılık arasındaki ilişkinin değerlendirilmesi. Gereç ve Yöntem: Bakırköy Dr. Sadi Konuk Eğitim ve Araştırma Hastanesi Göz Kliniği Şaşılık polikliniğinde takip edilen 10 şaşı, 10 anizometropik ambliyopisi olan hasta ve 10 sağlam gözlü kontrol grubundaki olguların snellen eşeli ile tashihsiz ve tashihli görme keskinliği belirlendi. Kontrast duyarlılık ‘Functional Acuity Contrast Test’ ile değerlendirildi. Tüm sonuçlar istatistiksel olarak ‘korelasyon analizi’ ve ‘ki-kare testi’ ile incelendi. Bulgular: Yaş ortalaması şaşı ambliyopisi olan hastalarda 9.92±3.42 yıl (7-16 yıl); anizometropik ambliyopisi olan hastalarda 10.16±3.84 yıl (6-13 yıl) ; kontrol grubunda 12.30±4.03 yıl (9-18 yıl) idi. Olguların tashihli görme keskinliği ortalaması; şaşı ambliyoplarda 0.44, anizometropik ambliyoplarda ise 0.37 idi. İki grup arasında görme keskinliği ve yaş ortalaması bakımından istatistiksel olarak anlamlı fark yoktu (ki-kare; p>0.05). Şaşı ambliyoplarda ortalama kontrast duyarlılık değeri 70.1 iken; anizometropik ambliyoplarda 71.2 idi (ki-kare;p>0.05). Şaşı ambliyop hastaların % 60'ında, anizometropik ambliyop hastaların ise % 50' sinde tüm uzaysal frekanslarda azalmış kontrast duyarlılık seviyesi saptandı. İki grup arasında istatistiksel olarak anlamlı fark yoktu (ki-kare; p>0.05). Kontrol grubunda ise tüm uzaysal frekanslarda kontrast duyarlılık seviyeleri normal düzeyde idi. Sonuç: Şaşı ve anizometropik ambliyoplarda kontrast duyarlılık sonuçları açısından anlamlı fark saptanmadı. Ambliyop gözlerde görme keskinliğindeki azalmayla orantılı olarak kontrast duyarlılık değerlerinde azalma olduğu saptandı

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Cite This Article

TUĞCU, B., GÜREZ, C., YÜZBAŞIOĞLU, E., ŞENCAN, S. (2007). Contrast sensitivity results in strabismic and anisometropic amblyopes. MN Oftalmoloji, Cilt: 14 - Sayı: 3, 174–176. https://ajindex.com/articles/295958

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