Santral Kornea Kalınlığının Diürnal Ritim Üzerine Olan Etkisi

To Evaluate the Effect of Central Corneal Thickness on Diurnal Variation of Intraocular Pressure

Özet

Amaç: Santral kornea kalınlığının (SKK) diürnal ritim üzerine olan etkisinin değerlendirilmesi. Gereç ve Yöntem: Hakkari Devlet Hastanesi Göz Hastalıkları Polikliniği'nde Mayıs 2012-Eylül 2013 tarihleri arasında aynı hekim tarafından değerlendirilen ve ölçümleri yapılan 52 hastanın 104 gözüne ait sonuçlar geriye dönük olarak incelendi. SKK'ya göre >520 µm ve =5 mmHg ve 520 µm olan olgularda >=5 mmHg GİB dalgalanmasının anlamlı olarak daha fazla olduğu saptandı (p<0.05). Sonuç: SKK yüksek olan olgularda GİB dalgalanması yanıltıcı olabilir, hastanın glokom riski oluşturabilecek diğer parametreler açısından dikkatli tetkiki gerekir.

Abstract

Purpose: To evaluate the effect of central corneal thickness (CCT) on diurnal variation of intraocular pressure (IOP). Materials and Methods: This retrospective study involved an evaluation of eyes of 52 patients, a total of 104 eyes, who were followed-up and measured their IOP by the same physician between May 2012 and September 2013 in the eye clinic of Hakkari State Hospital. Patients were grouped by their CCT (>520 µm and <=520 µm) and diurnal IOP variation (>=5 mmHg and <5 mmHg). Results: Of the 58% of patients (n=30) were male, and 42% (n=22) of them were female. Intraocular pressure (IOP) of the subjects who had CCT <=520 µm were found significantly lower at all measurements (p<0.01). It was found that mean IOP of the subjects were lower in the afternoon hours than in the morning (p<0.05). Subjects who had CCT >520 µm had significantly more >=5 mmHg IOP fluctuation (p<0.05) . Conclusion: IOP fluctuation may cause false results in patients with high CCT. Therefore, patients need to be evaluated carefully in terms of other parameters which cause risk for glaucoma.