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Automated Perimetry
Carbonic Anhydrase Inhibitors
Intra Ocular Lens Power Calculation and Optic Biometry...
Visual Field Defects in Glaucoma
Visual Field Defect and Retinal Nerve Fiber Layer Defect in a Case of Optic Nerve Head Drusen...
Current Minimal Invasive Angle Procedures Without Implants for the Treatment of Glaucoma...
Intra Ocular Lens Power Calculation and Optic Biometry...
Automated Perimetry
Carbonic Anhydrase Inhibitors
Visual Field Defect and Retinal Nerve Fiber Layer Defect in a Case of Optic Nerve Head Drusen...
Glokom-Katarakt 2017 , Vol 12 , Num 4
Turkish Abstract Abstract PDF Similar Articles Mail to Author
Comparison of Intraocular Lens Power Formulas Using Optical Low Coherence Refl ectometry in Cataract Patients
Ümit DOĞAN1, Fatih ULAŞ2, Abdulgani KAYMAZ3, Adem SOYDAN4, Enes UYAR5
1Yrd. Doç. Dr., Abant İzzet Baysal Üniversitesi Tıp Fakültesi, Göz Hastalıkları Anabilim Dalı, Bolu - Türkiye
2Doç. Dr., Abant İzzet Baysal Üniversitesi Tıp Fakültesi, Göz Hastalıkları Anabilim Dalı, Bolu - Türkiye
3Yrd. Doç. Dr., Karabük Üniversitesi Tıp Fakültesi, Göz Hastalıkları Anabilim Dalı, Karabük - Türkiye
4Yrd. Doç. Dr., Gaziosmanpaşa Üniversitesi Tıp Fakültesi, Göz Hastalıkları Anabilim Dalı, Tokat - Türkiye
5Asist. Doç. Dr., Abant İzzet Baysal Üniversitesi Tıp Fakültesi, Göz Hastalıkları Anabilim Dalı, Bolu - Türkiye
Purpose: To compare the accuracy of various biometric formulas for predicting postoperative refraction determined using an optical low-coherence refl ectometry device.

Materials and Methods: All eyes were divided into three groups according to axial length; short (<22.0 mm), average (22.0?24.5 mm), and long (>24.5 mm) eyes. The mean error and the mean absolute error values (MAE) were calculated for fi ve various IOL formulas (Haigis, Hoffer Q, SRK/T, Holladay 1, and SRK II) were compared.

Results: The mean absolute errors of 88.7% of the eyes were within 1 D and of 98.3% were within 2 D. MAE values, in short eyes, for Haigis, Hoffer Q, SRK/T, Holladay 1 and SRK II formulas were 0.37±0.28 D, 0.32±0.29 D, 0.42±0.30 D, 0.41±0.25 D and 0.46±0.33 D, respectively. In average eyes MAE values were 0.52±0.47 D, 0.51±0.46 D, 0.53±0.46 D, 0.51±0.45 D and 0.58±0.50 D, respectively. In long eyes MAE values were 0.52±0.47 D, 0.51±0.46 D, 0.53±0.46 D, 0.51±0.45 D and 0.58±0.50 D, respectively.

Conclusion: The Haigis, Hoffer Q, SRK/T and Holladay 1 formulas gave more predictable refractive outcome than SRK II formula in all axial length groups. Keywords : Biometry, Cataract surgery, Intraocular lens power calculation, Optical low coherence refl ectometry, Refractive outcome

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