Journals / Türk Oftalmoloji Dergisi / 2003 / Cilt: 33 - Sayı: 1-1

Effects of moderate myopia on the central visual field

Orta derece miyopinin merkezi görme alanına etkisi

Pages
127–133
Publication Date
2022-11-04
DOI
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AI Summary & Key Takeaways

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

When evaluating the visual field of myopic subject with glaucoma, knowledge of these changes may help practitior to ditinguish pathological defects from physiological one.

📌 3 Key Takeaways

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Objective & Hypothesis:Aim: To investigate whether moderate myopia has any effects on the central visual field.
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Key Findings & Data:Material and methods: This study included 30 eyes of 21 healthy, moderate myopes (sphere, -3 D to -6 D) and 25 eyes of 15 age and sex-matched healthy emmetropes (sphere, +1 D to -1 D).
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Conclusion & Impact:When evaluating the visual field of myopic subject with glaucoma, knowledge of these changes may help practitior to ditinguish pathological defects from physiological one.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Aim: To investigate whether moderate myopia has any effects on the central visual field. Material and methods: This study included 30 eyes of 21 healthy, moderate myopes (sphere, -3 D to -6 D) and 25 eyes of 15 age and sex-matched healthy emmetropes (sphere, +1 D to -1 D). Each subject underwent central 30-2 threshold testing bilaterally using Humphrey automated achromatic perimetry and blue-on-yellow perimetry. Foveal threshold, mean retinal sensitivity, mean superior sensitivity, mean inferior sensitivity, and mean sensitivities of concentric areas (area 1, central 10°; area 2, 10°-20°; area 3, 20°-30°) from both groups were statistically compared using Student's t test.Results: Using achromatic perimetry, moderate myopes had significantly lower mean sensitivity (p=0.001), mean superior sensitivity (p=0.002), and mean sensitivity of area 3 in the superior field (p=0.001) than did emmetropes. Using blue-on-yellow perimetry, myopes also had significantly lower mean sensitivity (p=0.00002), mean superior sensitivity (p=0.00001), mean inferior sensitivity (p=0.02), and mean sensitivities of area 2 (p=0.04) and area 3 (p=0.0001) in the superior field than did emmetropes. The decrease in superior field is more remarkably in nasal part of the concentric areas. Conclusions: As previously reported for high myopia, moderate myopia is also associated with a diffuse decrease in retinal sensitivity, particularly in superior part of the visual field. These changesare more remarkably in blue-on-yellow perimetry. When evaluating the visual field of myopic subject with glaucoma, knowledge of these changes may help practitior to ditinguish pathological defects from physiological one.

Özet

Amaç: Orta derece miyopinin merkezi görme alanına etkilerini araştırmak. Yöntem: Orta derecede (sferik değeri, -3 D ile -6 D) miyop 21 olgunun 30 gözü ile yaş ve cinsiyet açısında eşleştirilmiş 15 emetrop (sferik değeri, +1 D ile -l D) olgunun 25 gözüne Humphrey bilgisayarlı otomatik perimetrenin 30-2 programı ile akromatik ve mavi-sarı perimetre uygulandı. Orta derece miyopların fovea hassasiyeti, ortalama retina hassasiyeti, üst ve alt görme alanı ortalama hassasiyeti ve 10 derecelik dairesel alanların (1. bölge: merkezi 10°, 2. bölge: 10°-20°, 3. bölge: 20°-30°) ortalama retina hassasiyeti emetrop olguların sonuçları ile Student's t testi" kullanılarak karşılaştırıldı. Bulgular: Akromatik perimetre ile görme alanı ortalama hassasiyeti (p=0.001), üst yarı hassasiyeti (p=0.002) ile görme alanının üst yarısında 3. bölgenin hassasiyeti (p=0.001) miyop olgularda daha düşük tespit edildi. Mavi-sarı perimetre ile görme alanı ortalama hassasiyeti (p=0.00002), üst (p=0.00001) ve alt yarı (p=0.02) hassasiyetleri ile üst yarıda nazal kısımda da-ha belirgin olmak üzere, 2. bölge (p=0.04) ve 3. bölge (p=0.0001) hassasiyetleri miyoplarda da-ha düşük saptandı. Sonuç: Daha önce yüksek miyoplarda bildirildiği gibi, orta derece miyopî de üst yarıda da-ha belirgin olmak üzere, yaygın retina hassasiyet azalmasına neden olmaktadır. Miyopiye bağlı değişiklikler mavi-sarı perimetrede daha belirgindir. Glokomlu miyop olguların görme alanının değerlendirilmesinde bu değişikliklerin bilinmesi hekime patolojik bulguların ayrılmasında yar-dımcı olacaktır.

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Cite This Article

DERVİŞOĞULLARI, S., AKARSU, C., ERGİN, A., TANER, P. (2022). Effects of moderate myopia on the central visual field. Türk Oftalmoloji Dergisi, Cilt: 33 - Sayı: 1-1, 127–133. https://ajindex.com/articles/639024

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