.: ORİJİNAL ARAŞTIRMA
Comparison of Biometric Measurements and Intraocular Lens Power Calculation Measured by Dual Scheimpflug-Based and Partial Coherence Interferometry-Based Optic Biometers
Parsiyel Koherens İnterferometri ve Çift Scheimflug Tabanlı İki Ayrı Biometri ile Ölçülen Göz İçi Lens Sonuçlarının Karşılaştırılması
Turkiye Klinikleri J Ophthalmol. 2021;30(3):187-90
doi: 10.5336/ophthal.2020-80434
Makale Dili: EN
Tam Metin
ABSTRACT
Objective: To compare the biometric values measured by Dual Scheimpflug-based and partial coherence interferometry-based optic biometers and to evaluate the intraocular lens (IOL) power calculations performed by using different formulas including SRK-2, SRK-T, Holladay 1 and Hoffer Q. Material and Methods: Patients who applied to our clinic with visual impairment and diagnosed as senil cataract were recruited in the current study. After detailed ophthalmologic examination, biometric measurements including mean anterior chamber depth (ACD), axial length (AL) and keratometric parameters (K1, K2) were performed by using the Galilei G6 Dual Scheimpflug Analyzer and IOL Master 500. The IOL power (Sensar AAB00 hydrophobic acrylic IOL AMO) calculations targeting emmetropia were performed by using SRK-2, SRK-T, Holladay 1 and Hoffer Q formulas with the two devices. These parameters were compared with statistical analysis. Results: One hundred and six eyes of 94 patients with nuclear sclerosis were recruited. The mean age of patients (40 female, 54 male) was 67.44±8.99 years. The value of K1 was found to be statistically higher in measurement performed by IOL Master 500 (p<0.001). The IOL power was calculated statistically higher with all formulas measured by IOL Master 500 (p<0.001). Conclusion: The mean ACD, AL and K2 values did not differ between the two devices. Average K and K1 parameter was measured higher when measured with IOL Master 500. The mean IOL power was calculated statistically significantly different between these two devices.
Keywords: Biometry; intraocular lens implantation; cataract
Objective: To compare the biometric values measured by Dual Scheimpflug-based and partial coherence interferometry-based optic biometers and to evaluate the intraocular lens (IOL) power calculations performed by using different formulas including SRK-2, SRK-T, Holladay 1 and Hoffer Q. Material and Methods: Patients who applied to our clinic with visual impairment and diagnosed as senil cataract were recruited in the current study. After detailed ophthalmologic examination, biometric measurements including mean anterior chamber depth (ACD), axial length (AL) and keratometric parameters (K1, K2) were performed by using the Galilei G6 Dual Scheimpflug Analyzer and IOL Master 500. The IOL power (Sensar AAB00 hydrophobic acrylic IOL AMO) calculations targeting emmetropia were performed by using SRK-2, SRK-T, Holladay 1 and Hoffer Q formulas with the two devices. These parameters were compared with statistical analysis. Results: One hundred and six eyes of 94 patients with nuclear sclerosis were recruited. The mean age of patients (40 female, 54 male) was 67.44±8.99 years. The value of K1 was found to be statistically higher in measurement performed by IOL Master 500 (p<0.001). The IOL power was calculated statistically higher with all formulas measured by IOL Master 500 (p<0.001). Conclusion: The mean ACD, AL and K2 values did not differ between the two devices. Average K and K1 parameter was measured higher when measured with IOL Master 500. The mean IOL power was calculated statistically significantly different between these two devices.
Keywords: Biometry; intraocular lens implantation; cataract
ÖZET
Amaç: Çift Scheimflug analizatörü ve parsiyel koherens interferometri, optik biometri ile göz içi lensinin (GİL) SRK-2, SRK-T, Holladay- 1 ve Hoffer Q formülleri ile ölçümlerinin karşılaştırılması amaçlandı. Gereç ve Yöntemler: Kliniğimize görme azlığı şikâyeti ile gelen ve senil nükleer katarakt tanısı konulan hastalar çalışmaya dâhil edildi. Hastalara ayrıntılı oftalmolojik muayene sonrası, Gallilei G6 çift Scheimflug analizörü ve İOL Master 500 parsiyel koherens interferometri optik biometri ile ön kamara derinliği (ÖKD), aksiyel uzunluk (AU), keratometrik parametreler (K1, K2), SRK-2, SRK-T, Holladay- 1 ve Hoffer Q formülleri ile GİL ölçümleri (Sensar AAB00 hidrofobik akrilik GİL AMO) postoperatif emetropi hedeflenerek ölçüldü ve istatistiksel analiz yapıldı. Bulgular: Kırk kadın, 54 erkek; 94 senil nükleer katarakt hastasının, 106 gözü çalışmaya alındı. Hastanın yaş ortalaması 67,44±8,99 idi. Ortalama K1 değeri İOL Master 500 parsiyel koherens interferometri optik biometri ile istatistiksel olarak daha yüksek bulundu. (p<0,001). Ortalama GİL ölçüm sonuçları, İOL Master 500 parsiyel koherens interferometri optik biometri ile istatistiksel olarak daha yüksek bulundu. (p<0,001). Sonuç: Ortalama ÖKD, AU ve K2 değerleri bakımından 2 ölçüm arasında fark yoktu. Ortalama K1 değeri İOL Master 500 parsiyel koherens interferometri optik biometri ile istatistiksel olarak daha yüksek bulundu. İki cihaz arasında, göz içi mercek ölçümleri arasında tüm formüllerde farklılık mevcuttur
Anahtar Kelimeler: Biometri; intraoküler lens implantasyonu; katarakt
Amaç: Çift Scheimflug analizatörü ve parsiyel koherens interferometri, optik biometri ile göz içi lensinin (GİL) SRK-2, SRK-T, Holladay- 1 ve Hoffer Q formülleri ile ölçümlerinin karşılaştırılması amaçlandı. Gereç ve Yöntemler: Kliniğimize görme azlığı şikâyeti ile gelen ve senil nükleer katarakt tanısı konulan hastalar çalışmaya dâhil edildi. Hastalara ayrıntılı oftalmolojik muayene sonrası, Gallilei G6 çift Scheimflug analizörü ve İOL Master 500 parsiyel koherens interferometri optik biometri ile ön kamara derinliği (ÖKD), aksiyel uzunluk (AU), keratometrik parametreler (K1, K2), SRK-2, SRK-T, Holladay- 1 ve Hoffer Q formülleri ile GİL ölçümleri (Sensar AAB00 hidrofobik akrilik GİL AMO) postoperatif emetropi hedeflenerek ölçüldü ve istatistiksel analiz yapıldı. Bulgular: Kırk kadın, 54 erkek; 94 senil nükleer katarakt hastasının, 106 gözü çalışmaya alındı. Hastanın yaş ortalaması 67,44±8,99 idi. Ortalama K1 değeri İOL Master 500 parsiyel koherens interferometri optik biometri ile istatistiksel olarak daha yüksek bulundu. (p<0,001). Ortalama GİL ölçüm sonuçları, İOL Master 500 parsiyel koherens interferometri optik biometri ile istatistiksel olarak daha yüksek bulundu. (p<0,001). Sonuç: Ortalama ÖKD, AU ve K2 değerleri bakımından 2 ölçüm arasında fark yoktu. Ortalama K1 değeri İOL Master 500 parsiyel koherens interferometri optik biometri ile istatistiksel olarak daha yüksek bulundu. İki cihaz arasında, göz içi mercek ölçümleri arasında tüm formüllerde farklılık mevcuttur
Anahtar Kelimeler: Biometri; intraoküler lens implantasyonu; katarakt
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