Accuracy of Various Intraocular Lens Calculation Formulas in Shallow Anterior Chamber Patients with Normal Axial Length
نویسندگان
چکیده
منابع مشابه
Accuracy of Various Intraocular Lens Power Calculation Formulas in Steep Corneas
PURPOSE To compare the accuracy of four different intraocular lens (IOL) power calculation formulas for eyes with mean keratometry values greater than 46 diopters (D). METHODS Forty five eyes from 45 patients who were candidates for senile cataract surgery with mean keratometry values greater than 46 D were included. Calculation of the IOL power was performed by the Lenstar. The implanted IOL...
متن کاملIntraocular lens calculation accuracy limits in normal eyes.
PURPOSE To quantify the current accuracy limits, analyze the residual errors, and propose the next steps for prediction accuracy improvements. SETTING Eye hospitals in Germany, Denmark, and Austria. METHOD Numerical ray tracing using manufacturer's intraocular lens (IOL) data (vertex radii, central thickness, refractive index) was used for all calculations. Postoperative lens position was p...
متن کاملdiscrepancy between actual and theoretical anterior chamber depth in patients with morcher posterior chamber intraocular lens
purpose : cataract surgery is the most common ocular surgery worldwide and in modern era of phacoemulsification with posterior chamber intraocular lens (pc iol) implantation, refractive aspects of surgery is as important as the surgery itself. after the iol implantation, the anterior chamber depth (acd) is increased and the iridiocorneal angle is widened. these changes should be considered for ...
متن کاملAccuracy of intraocular lens power calculation in pediatric cataracts with less than a 20 mm axial length of the eye.
INTRODUCTION Selection of an appropriately-powered IOL is a complex issue, especially in eyes with an axial length of less than 20 mm in pediatric cataract. OBJECTIVE To assess the accuracy of IOL power calculation formulae in pediatric cataracts in eyes with an axial length of less than 20 mm. MATERIALS AND METHODS The records of children less than 15 years old with congenital cataract who...
متن کاملChanges in Anterior Chamber Depth after Phacoemulsification in Pseudoexfoliative Eyes and their Effect on Accuracy of Intraocular Lens Power Calculation
OBJECTIVES To compare anterior chamber depth (ACD) changes after phacoemulsification surgery in patients with pseudoexfoliation syndrome (PEX) and normal patients using an anterior segment imaging method. Another aim of this study was to evaluate the effect of these changes on the accuracy of intraocular lens (IOL) power calculation and postoperative refraction. MATERIALS AND METHODS Twenty-t...
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ژورنال
عنوان ژورنال: Advances in Clinical Medicine
سال: 2018
ISSN: 2161-8712,2161-8720
DOI: 10.12677/acm.2018.82036