Intraocular lens power calculation
Prediction error and accuracy of intraocular lens power calculation in pediatric patient comparing SRK II and Pediatric IOL Calculator
... of intraocular lens power calculation formulas, there is no evidence that these formulas have good predictive accuracy in pediatric, whose eyes are still undergoing rapid growth and refractive ...
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Intraocular lens power calculation following laser refractive surgery
... is undertaken. An algorithm is then applied to the refraction to determine the true IOL power to be inserted. Ianchulev and Leccisotti also described “on the table” approaches with reasonable postoperative ...
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CATARACT SURGERY AND INTRAOCULAR LENS POWER CALCULATION IN A PATIENT WITH ANTERIOR MEGALOPHTHALMOS WITH NORMAL SIZED CRYSTALLINE LENS; CASE REPORT
... Anterior megalophthalmos is a rare bilateral here- ditary disorder in which megalocornea (defined as hor- izontal corneal diameter greater than 13 mm) is associ- ated with enlarged anterior segment of the eye (1). While ...
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Prediction accuracy of intraocular lens power calculation methods after laser refractive surgery
... corneal power correction approaches assume a one-to-one relation between the measured K-value and corrected K- value and do not take the extent of ablation into ...
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Impact of the anterior-posterior corneal radius ratio on intraocular lens power calculation errors
... corneal power” in the anterior OCT software, which was the sum of the anterior and posterior corneal keratometric powers adjusted for the central corneal thickness, was considered the total corneal refractive ...
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Predictive accuracy of intraocular lens power calculation using applanation ultrasound biometry: can we still rely on ultrasound biometry?
... As a conclusion, refractive outcomes following phacoemulsification using applanation ultrasound biometry are comparable with international standards for good practice and outcomes, with 95.4% of eyes achieving within 1 D ...
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Accuracy of swept-source optical coherence tomography based biometry for intraocular lens power calculation: a retrospective cross–sectional study
... The main limitations of this study are as follows. First, we did not investigate other formulas (e.g., Haigis, Olsen, and Barrett Universal) using the SS–OCT biometer, although they provide additional measure- ments such ...
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Intraocular lens power calculation in eyes with previous corneal refractive surgery
... corneal power that is lower by ...corneal power by the GOF has to be entered into IOL power calculation ...corneal power calculated by the GOF and by the standard keratometric index, ...
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Effect of pupillary dilation on Haigis formula-calculated intraocular lens power measurement by using optical biometry
... IOL calculation parameters, subjects with angle closure suspected (examined under Sussman four-mirror gonioscope), subjects with lens opacity too opaque to be measured using the IOLMaster, subjects with a ...
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Influence of corneal power on intraocular lens power of the second eye in the SRK/T formula in bilateral cataract surgery
... Olsen [9] showed that the magnitude of the partial ad- justment of refractive outcome of the first eye and the improvement in refractive outcome of the second eye differ depending on the IOL power ...
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Comparison of Visian toric collamer lens and toric acrylic intraocular lens implantation for the treatment of myopia with astigmatism
... AG, Jena, Germany) was used to calculate IOL power for all cases. For group A, biometry was performed to ensure availability of these data in the future in case of cataract development in TICL patients. This was ...
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Inaccuracy of Intraocular Lens Power Prediction for Cataract Surgery in Angle Closure Glaucoma
... of intraocular lens (IOL) power predictions for cataract surgery in eyes with primary angle- closure glaucoma ...preoperative calculation of IOL power may be inaccurate for eyes with ...
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<p>How Can We Improve Toric Intraocular Lens Calculation Methods? Current Insights</p>
... rical power, which in fl uences the cylindrical power at the corneal plane due to the different vergence of the ...effective lens position ...cylindrical power of 1.32 D at the corneal plane if ...
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Comparison of the Kane formula with existing formulas for intraocular lens power selection
... Hill-RBF performed better in our study outperforming each of these formulas although the increased accuracy compared with the Barrett was not statistically significant. Although the Hill-RBF website reports an out of ...
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Calculation of posterior chamber intraocular lens (IOL) size and dioptric power for use in pet rabbits undergoing phacoemulsification
... Sanchez, R. F., Becker, R., Dawson, C., Escanilla, N. and Lam, R. (2016), Calculation of posterior chamber intraocular lens (IOL) size and dioptric power for use in pet rabbits undergoing ...
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Performance of the SRK/T formula using A-Scan ultrasound biometry after phacoemulsification in eyes with short and long axial lengths
... acuity, intraocular pressure (IOP), slit-lamp and fundus examination, biometry for IOL power calculation including keratometry, and AL ...IOL power selection was a lens power ...
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Preoperative measurement vs intraoperative aberrometry for the selection of intraocular lens sphere power in normal eyes
... The differences between the postoperative spherical equivalent refractions and the predicted values were the prediction errors for each device. Figure 1 shows the distribution of the prediction errors by ...
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Comparison of optical biometry versus ultrasound biometry in cases with borderline signal-to-noise ratio
... Patients who had IOL Master biometry with borderline SNR (1.6–2.0) were included, while patients with good SNR (.2.0), poor SNR (,1.6), and borderline SNR associated with non-physiologic AL values were excluded (Figure ...
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Case Report The successful therapy of intravenous steroid on spontaneous and simultaneous bilateral malignant glaucoma post monocular phacoemulsification
... the intraocular fluid and pressure can be transmitted or conducted inversely into the optic ...ed intraocular pressure ...the intraocular fluid and pressure can be transmit- ted or conducted into the ...
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Correlations between Preoperative Angle Parameters and Postoperative Unpredicted Refractive Errors after Cataract Surgery in Open Angle Glaucoma (AOD 500)
... Prior to cataract surgery, multiple biometric analyses are per- formed, including measurement of axial length, keratometry, and anterior chamber depth. It is expected that minimum re- fractive error will remain after ...
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