Effect of Reduced Meal Frequency During Ramadan Fasting on Retinal Vascular Caliper and Anterior Segment Parameters

Year 2020, Volume: 25 Issue: 1, 39 - 43, 15.01.2020

Mustafa Doğan , Mehmet Cem Sabaner , Mehmet Akif Erol

https://doi.org/10.21673/anadoluklin.578534

Abstract

Aim: In
this study, we aimed to evaluate the effects of Ramadan fasting on retinal vascular
and anterior chamber parameters.

Materials and Methods: The study included 60 healthy eyes of 30 volunteers (15
males, 15 females) who visited our clinic between May and July 2017. We
performed measurements of intraocular pressure (IOP), anterior chamber volume (ACV),
central corneal thickness (CCT), central macular thickness (CMT), optic disc
retinal nerve fiber layer (OD-RNFL) and subfoveal choroidal thickness (SFCT) and
retinal vascular analysis (the central retinal artery equivalent [CRAE],
central retinal vein equivalent [CRVE], and artery-to-vein ratio [AVR]). The
measurements were repeated in the 4^th and 12^th hours of
the daily fasting period and 1^st postprandial hour on the last 5
days of the Ramadan month, and one month after the Ramadan month.

Results: The mean participant age was 29.30±8.12 years. The twelfth-hour SFCT, CRAE,
and CRVE measurements were statistically significantly lower than the values
measured one month after Ramadan (p=0.033, p=0.020, p=0.025, respectively). However,
no statistically significant difference was observed in the IOP, ACV, CCT, CMT,
OD-RNFL, and AVR measurements.

Discussion and Conclusion: We found that fasting for 12 hours or longer caused changes
in retinal vessel diameter and choroidal thickness.

Keywords

choroidal thickness, spectral domain optical coherence tomography, Ramadan fasting, reduced meal frequency, retinal vascular parameters, spectral domain optical coherence tomography

Ramazan Orucunun Vasküler Retina ve Ön Kamara Parametrelerine Etkisi

Abstract

 Amaç: Bu
çalışmada Ramazan orucunun vasküler retina ve ön kamara parametreleri üzerindeki
etkilerini değerlendirmek amaçlanmıştır

Gereç
ve Yöntemler: Mayıs—Temmuz 2017 döneminde kliniğimize gelen
30 gönüllünün (15 erkek, 15 kadın) 60 sağlıklı gözü çalışmaya alındı. Göz içi
basıncı (GİB), ön kamara hacmi (ÖKH), santral kornea kalınlığı (SSK), santral
makula kalınlığı (SMK), optik disk retina sinir lifi tabakası (OD-RSLT) ve
subfoveal koroit kalınlığı (SFKK) ölçümü ile retinal vasküler analiz (santral retinal arter damar değeri [SRAD],
santral retinal ven damar değeri [SRVD] ve arter/ven oranı [AVO])
gerçekleştirildi. Ölçümler Ramazan ayının son 5 gününde orucun 4. ve 12.
saatlerinde, iftardan 1 saat sonra ve Ramazan ayından 1 ay sonra tekrarlandı.

Bulgular: Katılımcı
yaş ortalaması 29,30±8,12 yıl idi. Orucun 12. saatindeki SFKK, SRAD ve SRVD
değerleri Ramazan ayından 1 ay sonra ölçülen değerlere kıyasla istatistiksel olarak
anlamlı şekilde daha düşüktü (sırasıyla p=0,033; p=0,020; p=0,025). Fakat GİB, ÖKH,
SSK, SMK, OD-RSLT ve AVO değerlerinde istatistiksel olarak anlamlı bir
değişiklik gözlenmedi.

Tartışma
ve Sonuç: On iki saat veya daha uzun süre oruç tutmanın retinal
damar değerlerinde ve koroit kalınlığında değişiklere yol açtığı saptanmıştır.

Keywords

azaltılmış beslenme sıklığı, koroit kalınlığı, Ramazan orucu, retinal vasküler parametreler, spektral alan optik koherens tomografisi

References

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