Abstract
We thank Dr Carifi for his interest in and comments on our article. 1 Jung K.I. Yang J.W. Lee Y.C. Kim S.Y. Cataract surgery in eyes with nanophthalmos and relative anterior microphthalmos. Am J Ophthalmol. 2012; 153: 1161-1168 Abstract Full Text Full Text PDF PubMed Scopus (47) Google Scholar First, there were 15 eyes (88.2%) requiring an intraocular lens (IOL) of at least 30 diopters in nanophthalmic eyes. They were actually inserted with IOLs of equal to or more than 30 diopters. Secondly, we agree that axial length (AL) measurements in nanophthalmic eyes might be improved by partial coherence interferometry (PCI). Unfortunately, PCI was not available in our hospital. Our study was retrospective in design. Prospective studies of cataract surgery in nanophthalmic eyes using PCI might be valuable, as Dr Carifi suggests. However, a randomized study failed to support that PCI offers superior accuracy of the AL measurements compared with ultrasound biometry. 2 Raymond S. Favilla I. Santamaria L. Comparing ultrasound biometry with partial coherence interferometry for intraocular lens power calculations: a randomized study. Invest Ophthalmol Vis Sci. 2009; 50: 2547-2552 Crossref PubMed Scopus (29) Google Scholar It is also reported that the PCI is limited because of poor laser penetration in eyes with dense cataracts, especially posterior subcapsular opacities. 3 Narvaez J. Cherwek D.H. Stulting R.D. et al. Comparing immersion ultrasound with partial coherence interferometry for intraocular lens power calculation. Ophthalmic Surg Lasers Imaging. 2008; 39: 30-34 Crossref PubMed Scopus (32) Google Scholar For now, ultrasound biometry is a widely used technique for biometry. 3 Narvaez J. Cherwek D.H. Stulting R.D. et al. Comparing immersion ultrasound with partial coherence interferometry for intraocular lens power calculation. Ophthalmic Surg Lasers Imaging. 2008; 39: 30-34 Crossref PubMed Scopus (32) Google Scholar , 4 Leaming D.V. Practice styles and preferences of ASCRS members—2003 survey. J Cataract Refract Surg. 2004; 30: 892-900 Crossref PubMed Scopus (279) Google Scholar Cataract Surgery in Eyes With Nanophthalmos and Relative Anterior MicrophthalmosAmerican Journal of OphthalmologyVol. 154Issue 6PreviewI commend Jung and associates for describing the results of phacoemulsification cataract surgery under topical anesthesia observed in nanophthalmos and relative anterior microphthalmos.1 The authors investigated the refractive outcomes, describing a poorer prediction of the postoperative refraction in nanophthalmos, which could be attributable to at least 2 factors. Full-Text PDF
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