From: "Saved by Windows Internet Explorer 8" Subject: The Relationship Between Axial Length, Refractive Error and Corneal Curvature in Children and Young Adults With Cerebral Palsy -- Little et al. 50 (5): 3965 -- ARVO Meeting Abstracts Date: Fri, 13 May 2011 13:50:30 +0100 MIME-Version: 1.0 Content-Type: multipart/related; type="text/html"; boundary="----=_NextPart_000_0000_01CC1174.B92D3D10" X-MimeOLE: Produced By Microsoft MimeOLE V6.1.7601.17574 This is a multi-part message in MIME format. ------=_NextPart_000_0000_01CC1174.B92D3D10 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Content-Location: http://abstracts.iovs.org//cgi/content/abstract/50/5/3965?sid=8730e340-8a1d-46b9-bcec-d641f947dae2 The Relationship Between Axial Length, Refractive = Error and Corneal Curvature in Children and Young Adults With Cerebral = Palsy -- Little et al. 50 (5): 3965 -- ARVO Meeting Abstracts =
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Invest Ophthalmol Vis Sci 2009;50: E-Abstract = 3965.
=A9 2009=20 ARVO =

3965=97A76

The Relationship Between Axial Length, Refractive Error and Corneal=20 Curvature in Children and Young Adults With Cerebral=20 Palsy

J.-A. = Little1,2,=20 J. F. McClelland1, K. J.=20 Saunders1 and A. Jackson2 =

1Biomedical Sciences, University of = Ulster,=20 Coleraine, United Kingdom
2Low Vison/Contact Lens Clinic, = Royal=20 Group of Hospitals, Belfast, United Kingdom

Commercial Relationships: = J.-A.=20 Little, None; J.F. McClelland, None; K.J. Saunders, = None;=20 A. Jackson, None.

Support: R&D Office =

Abstract

Purpose:Children and young adults with cerebral palsy = (CP) have=20 an increased incidence of high refractive errors = (Schenk-Rootlieb=20 et al., 1992; Sobrado et al., 1999; Kozeis = et=20 al., 2007). Whilst in the developmentally normal = population there=20 is a strong association between refractive error and axial = length=20 there are no studies examining whether this relationship = holds in CP.=20 This study is the first to investigate the relationship = between=20 refractive error and ocular biometry in 44 children and young = adults=20 with CP.

Methods:Measures of refractive error, axial length (AL) = and=20 corneal curvature (CC) were attempted on 44 children and = young=20 adults with CP (aged 4-19 years). Refractive error was = assessed=20 using cycloplegic retinoscopy. AL was measured with the Zeiss = IOLMaster and CC with the Nidek hand-held KM 500 = autokeratometer.=20 Data from the right eye were analysed.

Results:Refractive error was measured successfully in = all=20 subjects. Mean spherical equivalent (MSE) ranged from -7.125D = to=20 +6.375D. AL and CC were measured in 36 (82%) and 35 (80%) = subjects=20 respectively. AL ranged from 18.94 to 27.47mm: average CC = ranged from=20 7.28 to 8.45mm. AL was significantly correlated with MSE=20 refractive error (r=3D-0.91, p<0.0001). CC did not=20 significantly influence refractive error (r=3D-0.11, = p=3D0.51).=20 AL/CC ratio was calculated and compared with refractive = error, and=20 also revealed a significant relationship (r=3D-0.92,=20 p<0.0001), slightly strengthened by the inclusion = of CC=20 with AL data.

Conclusions:The relationship between refractive error = and axial=20 length in children and young adults with CP is similar to = that in a=20 developmentally normal population. Corneal power did not = demonstrate=20 an association with refractive error, again consistent with = the=20 literature. The aetiology of refractive error in CP is not = due to a=20 unique ocular biometric profile. Further investigation is=20 required to determine why individuals with CP demonstrate = high=20 refractive errors.

Keywords: refractive error development =95 cornea: = clinical=20 science =95 optical properties

=A9=20 2009, The Association for Research in Vision and Ophthalmology, Inc., = all rights=20 reserved. Permission to republish any abstract or part of an abstract in = any=20 form must be obtained in writing from the ARVO Office prior to = publication.



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i < this._headers.length; i++) {=0A= conn.setRequestProperty(this._headers[i].h, this._headers[i].v);=0A= }=0A= this._headers =3D [];=0A= if (this.method =3D=3D 'POST') {=0A= // POST data=0A= conn.setDoOutput(true);=0A= var wr =3D new = java.io.OutputStreamWriter(conn.getOutputStream(), this._getCharset());=0A= wr.write(data);=0A= wr.flush();=0A= wr.close();=0A= }=0A= // read response headers=0A= // NOTE: the getHeaderField() methods always return nulls for me :(=0A= var gotContentEncoding =3D false;=0A= var gotContentLength =3D false;=0A= var gotContentType =3D false;=0A= var gotDate =3D false;=0A= var gotExpiration =3D false;=0A= var gotLastModified =3D false;=0A= for (var i =3D 0; ; i++) {=0A= var hdrName =3D conn.getHeaderFieldKey(i);=0A= var hdrValue =3D conn.getHeaderField(i);=0A= if (hdrName =3D=3D null && hdrValue =3D=3D null) {=0A= break;=0A= }=0A= if (hdrName !=3D null) {=0A= this._headers[this._headers.length] =3D {h:hdrName, = v:hdrValue};=0A= switch (hdrName.toLowerCase()) {=0A= case 'content-encoding': gotContentEncoding =3D true; break;=0A= case 'content-length' : gotContentLength =3D true; break;=0A= case 'content-type' : gotContentType =3D true; break;=0A= case 'date' : gotDate =3D true; break;=0A= case 'expires' : gotExpiration =3D true; break;=0A= case 'last-modified' : gotLastModified =3D true; break;=0A= }=0A= }=0A= }=0A= // try to fill in any missing header information=0A= var val;=0A= val =3D conn.getContentEncoding();=0A= if (val !=3D null && !gotContentEncoding) = this._headers[this._headers.length] =3D {h:'Content-encoding', v:val};=0A= val =3D conn.getContentLength();=0A= if (val !=3D -1 && !gotContentLength) = this._headers[this._headers.length] =3D {h:'Content-length', v:val};=0A= val =3D conn.getContentType();=0A= if (val !=3D null && !gotContentType) = this._headers[this._headers.length] =3D {h:'Content-type', v:val};=0A= val =3D conn.getDate();=0A= if (val !=3D 0 && !gotDate) this._headers[this._headers.length] = =3D {h:'Date', v:(new Date(val)).toUTCString()};=0A= val =3D conn.getExpiration();=0A= if (val !=3D 0 && !gotExpiration) = this._headers[this._headers.length] =3D {h:'Expires', v:(new = Date(val)).toUTCString()};=0A= val =3D conn.getLastModified();=0A= if (val !=3D 0 && !gotLastModified) = this._headers[this._headers.length] =3D {h:'Last-modified', v:(new = Date(val)).toUTCString()};=0A= // read response data=0A= var reqdata =3D '';=0A= var stream =3D conn.getInputStream();=0A= if (stream) {=0A= var reader =3D new java.io.BufferedReader(new = java.io.InputStreamReader(stream, this._getCharset()));=0A= var line;=0A= while ((line =3D reader.readLine()) !=3D null) {=0A= if (this.readyState =3D=3D 2) {=0A= this.readyState =3D 3;=0A= if (this.onreadystatechange) {=0A= this.onreadystatechange();=0A= }=0A= }=0A= reqdata +=3D line + '\n';=0A= }=0A= reader.close();=0A= this.status =3D 200;=0A= this.statusText =3D 'OK';=0A= this.responseText =3D reqdata;=0A= this.readyState =3D 4;=0A= if (this.onreadystatechange) {=0A= this.onreadystatechange();=0A= }=0A= if (this.onload) {=0A= this.onload();=0A= }=0A= } else {=0A= // error=0A= this.status =3D 404;=0A= this.statusText =3D 'Not Found';=0A= this.responseText =3D '';=0A= this.readyState =3D 4;=0A= if (this.onreadystatechange) {=0A= this.onreadystatechange();=0A= }=0A= if (this.onerror) {=0A= this.onerror();=0A= }=0A= }=0A= };=0A= };=0A= }=0A= // ActiveXObject emulation=0A= if (!window.ActiveXObject && window.XMLHttpRequest) {=0A= window.ActiveXObject =3D function(type) {=0A= switch (type.toLowerCase()) {=0A= case 'microsoft.xmlhttp':=0A= case 'msxml2.xmlhttp':=0A= case 'msxml2.xmlhttp.3.0':=0A= case 'msxml2.xmlhttp.4.0':=0A= case 'msxml2.xmlhttp.5.0':=0A= return new XMLHttpRequest();=0A= }=0A= return null;=0A= };=0A= }=0A= ------=_NextPart_000_0000_01CC1174.B92D3D10 Content-Type: application/octet-stream Content-Transfer-Encoding: quoted-printable Content-Location: http://abstracts.iovs.org/javascript/ajax/utility.js /************************************************************************= *****=0A= * javascript/ajax/utility.js=0A= *=0A= * Utility functions for working with XMLHttpRequest data.=0A= *=0A= * Copyright 2006 Board of Trustees of the Leland Stanford Junior = University.=0A= = *************************************************************************= ***/=0A= =0A= /*=0A= * Copy XML nodes into an HTMLElement. This effectively=0A= * clones XML markup which uses XHTML naming conventions=0A= * into an HTML DOM.=0A= */=0A= function copy_xml_to_html(src, dst) {=0A= if (src.nodeType =3D=3D 1) { /* Node.ELEMENT_NODE */=0A= var e =3D document.createElement(src.nodeName);=0A= for (var i =3D 0; i < src.childNodes.length; i++) {=0A= copy_xml_to_html(src.childNodes[i], e);=0A= }=0A= for (var i =3D 0; i < src.attributes.length; i++) {=0A= var n =3D src.attributes[i].name;=0A= var v =3D unescape_xml_string(src.attributes[i].value); =0A= e.setAttribute(n, v);=0A= if (n =3D=3D "class") {=0A= e.className =3D v;=0A= }=0A= else if (n =3D=3D "style") {=0A= set_css_style(v, e, "");=0A= }=0A= }=0A= dst.appendChild(e);=0A= }=0A= else if (src.nodeType =3D=3D 3) { /* Node.TEXT_NODE */=0A= dst.appendChild(document.createTextNode(src.nodeValue));=0A= }=0A= }=0A= =0A= /* =0A= * It is unclear that this is the right thing to be calling=0A= * from copy_xml_to_html, but it appears that Safari decides=0A= * to convert & to the NCR #, and then encodes that=0A= * NCR to &%26%2338;. So, I'm going to treat the DOM Attr=0A= * value as a plain string, and run our XML string input=0A= * through the decoding routine below.=0A= */=0A= function unescape_xml_string(s) {=0A= return s.replace(/'/g, "'")=0A= .replace(/'/g, "'")=0A= .replace(/"/g, "\"")=0A= .replace(/"/g, "\"")=0A= .replace(/>/g, ">")=0A= .replace(/>/g, ">")=0A= .replace(/</g, "<")=0A= .replace(/</g, "<")=0A= .replace(/&/g, "&")=0A= .replace(/&/g, "&");=0A= }=0A= =0A= /*=0A= * Parse set of CSS rules and apply them to an element.=0A= * This is quite horrifying, but I'm unable to determine=0A= * how else to handle this with IE 6. FireFox and other=0A= * sane browsers let you simply set the style attribute=0A= * or use e.style.setProperty(rule, value, priority),=0A= * IE 6 appears to have neither of these capabilities..=0A= */=0A= function set_css_style(css, e, priority) {=0A= var rules =3D css.split(";");=0A= for (var i =3D 0; i < rules.length; i++) {=0A= var nvpair =3D rules[i].split(":");=0A= if (nvpair.length =3D=3D 2) {=0A= try {=0A= var name =3D nvpair[0]; /* style attribute */=0A= var value =3D nvpair[1]; /* attribute value */=0A= =0A= /*=0A= * For each possible style attribute, set the=0A= * appropriate style property in the element.=0A= */=0A= if (name =3D=3D "background") {=0A= e.style.background =3D value;=0A= }=0A= else if (name =3D=3D "background-attachment") {=0A= e.style.backgroundAttachment =3D value;=0A= }=0A= else if (name =3D=3D "background-color") {=0A= e.style.backgroundColor =3D value;=0A= }=0A= else if (name =3D=3D "background-image") {=0A= e.style.backgroundImage =3D value;=0A= }=0A= else if (name =3D=3D "background-position") {=0A= e.style.backgroundPosition =3D value;=0A= }=0A= else if (name =3D=3D "background-position-x") {=0A= e.style.backgroundPositionX =3D value;=0A= }=0A= else if (name =3D=3D "background-position-y") {=0A= e.style.backgroundPositionY =3D value;=0A= }=0A= else if (name =3D=3D "background-repeat") {=0A= e.style.backgroundRepeat =3D value;=0A= }=0A= else if (name =3D=3D "behavior") {=0A= e.style.behavior =3D value;=0A= }=0A= else if (name =3D=3D "border") {=0A= e.style.border =3D value;=0A= }=0A= else if (name =3D=3D "border-bottom") {=0A= e.style.borderBottom =3D value;=0A= }=0A= else if (name =3D=3D "border-bottom-color") {=0A= e.style.borderBottomColor =3D value;=0A= }=0A= else if (name =3D=3D "border-bottom-style") {=0A= e.style.borderBottomStyle =3D value;=0A= }=0A= else if (name =3D=3D "border-bottom-width") {=0A= e.style.borderBottomWidth =3D value;=0A= }=0A= else if (name =3D=3D "border-collapse") {=0A= e.style.borderCollapse =3D value;=0A= }=0A= else if (name =3D=3D "border-color") {=0A= e.style.borderColor =3D value;=0A= }=0A= else if (name =3D=3D "border-left") {=0A= e.style.borderLeft =3D value;=0A= }=0A= else if (name =3D=3D "border-left-color") {=0A= e.style.borderLeftColor =3D value;=0A= }=0A= else if (name =3D=3D "border-left-style") {=0A= e.style.borderLeftStyle =3D value;=0A= }=0A= else if (name =3D=3D "border-left-width") {=0A= e.style.borderLeftWidth =3D value;=0A= }=0A= else if (name =3D=3D "border-right") {=0A= e.style.borderRight =3D value;=0A= }=0A= else if (name =3D=3D "border-right-color") {=0A= e.style.borderRightColor =3D value;=0A= }=0A= else if (name =3D=3D "border-right-style") {=0A= e.style.borderRightStyle =3D value;=0A= }=0A= else if (name =3D=3D "border-right-width") {=0A= e.style.borderRightWidth =3D value;=0A= }=0A= else if (name =3D=3D "border-style") {=0A= e.style.borderStyle =3D value;=0A= }=0A= else if (name =3D=3D "border-top") {=0A= e.style.borderTop =3D value;=0A= }=0A= else if (name =3D=3D "border-top-color") {=0A= e.style.borderTopColor =3D value;=0A= }=0A= else if (name =3D=3D "border-top-style") {=0A= e.style.borderTopStyle =3D value;=0A= }=0A= else if (name =3D=3D "border-top-width") {=0A= e.style.borderTopWidth =3D value;=0A= }=0A= else if (name =3D=3D "border-width") {=0A= e.style.borderWidth =3D value;=0A= }=0A= else if (name =3D=3D "bottom") {=0A= e.style.bottom =3D value;=0A= }=0A= else if (name =3D=3D "clear") {=0A= e.style.clear =3D value;=0A= }=0A= else if (name =3D=3D "clip") {=0A= e.style.clip =3D value;=0A= }=0A= else if (name =3D=3D "color") {=0A= e.style.color =3D value;=0A= }=0A= else if (name =3D=3D "cssText") {=0A= e.style.Sets =3D value;=0A= }=0A= else if (name =3D=3D "cursor") {=0A= e.style.cursor =3D value;=0A= }=0A= else if (name =3D=3D "direction") {=0A= e.style.direction =3D value;=0A= }=0A= else if (name =3D=3D "display") {=0A= e.style.display =3D value;=0A= }=0A= else if (name =3D=3D "font") {=0A= e.style.font =3D value;=0A= }=0A= else if (name =3D=3D "font-family") {=0A= e.style.fontFamily =3D value;=0A= }=0A= else if (name =3D=3D "font-size") {=0A= e.style.fontSize =3D value;=0A= }=0A= else if (name =3D=3D "font-style") {=0A= e.style.fontStyle =3D value;=0A= }=0A= else if (name =3D=3D "font-variant") {=0A= e.style.fontVariant =3D value;=0A= }=0A= else if (name =3D=3D "font-weight") {=0A= e.style.fontWeight =3D value;=0A= }=0A= else if (name =3D=3D "height") {=0A= e.style.height =3D value;=0A= }=0A= else if (name =3D=3D "ime-mode") {=0A= e.style.imeMode =3D value;=0A= }=0A= else if (name =3D=3D "layout-flow") {=0A= e.style.layoutFlow =3D value;=0A= }=0A= else if (name =3D=3D "layout-grid") {=0A= e.style.layoutGrid =3D value;=0A= }=0A= else if (name =3D=3D "layout-grid-char") {=0A= e.style.layoutGridChar =3D value;=0A= }=0A= else if (name =3D=3D "layout-grid-line") {=0A= e.style.layoutGridLine =3D value;=0A= }=0A= else if (name =3D=3D "layout-grid-mode") {=0A= e.style.layoutGridMode =3D value;=0A= }=0A= else if (name =3D=3D "layout-grid-type") {=0A= e.style.layoutGridType =3D value;=0A= }=0A= else if (name =3D=3D "left") {=0A= e.style.left =3D value;=0A= }=0A= else if (name =3D=3D "letter-spacing") {=0A= e.style.letterSpacing =3D value;=0A= }=0A= else if (name =3D=3D "line-break") {=0A= e.style.lineBreak =3D value;=0A= }=0A= else if (name =3D=3D "line-height") {=0A= e.style.lineHeight =3D value;=0A= }=0A= else if (name =3D=3D "list-style") {=0A= e.style.listStyle =3D value;=0A= }=0A= else if (name =3D=3D "list-style-image") {=0A= e.style.listStyleImage =3D value;=0A= }=0A= else if (name =3D=3D "list-style-position") {=0A= e.style.listStylePosition =3D value;=0A= }=0A= else if (name =3D=3D "list-style-type") {=0A= e.style.listStyleType =3D value;=0A= }=0A= else if (name =3D=3D "margin") {=0A= e.style.margin =3D value;=0A= }=0A= else if (name =3D=3D "margin-bottom") {=0A= e.style.marginBottom =3D value;=0A= }=0A= else if (name =3D=3D "margin-left") {=0A= e.style.marginLeft =3D value;=0A= }=0A= else if (name =3D=3D "margin-right") {=0A= e.style.marginRight =3D value;=0A= }=0A= else if (name =3D=3D "margin-top") {=0A= e.style.marginTop =3D value;=0A= }=0A= else if (name =3D=3D "min-height") {=0A= e.style.minHeight =3D value;=0A= }=0A= else if (name =3D=3D "overflow") {=0A= e.style.overflow =3D value;=0A= }=0A= else if (name =3D=3D "overflow-x") {=0A= e.style.overflowX =3D value;=0A= }=0A= else if (name =3D=3D "overflow-y") {=0A= e.style.overflowY =3D value;=0A= }=0A= else if (name =3D=3D "padding") {=0A= e.style.padding =3D value;=0A= }=0A= else if (name =3D=3D "padding-bottom") {=0A= e.style.paddingBottom =3D value;=0A= }=0A= else if (name =3D=3D "padding-left") {=0A= e.style.paddingLeft =3D value;=0A= }=0A= else if (name =3D=3D "padding-right") {=0A= e.style.paddingRight =3D value;=0A= }=0A= else if (name =3D=3D "padding-top") {=0A= e.style.paddingTop =3D value;=0A= }=0A= else if (name =3D=3D "page-break-after") {=0A= e.style.pageBreakAfter =3D value;=0A= }=0A= else if (name 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e.style.posTop =3D value;=0A= }=0A= else if (name =3D=3D "posWidth") {=0A= e.style.posWidth =3D value;=0A= }=0A= else if (name =3D=3D "right") {=0A= e.style.right =3D value;=0A= }=0A= else if (name =3D=3D "ruby-align") {=0A= e.style.rubyAlign =3D value;=0A= }=0A= else if (name =3D=3D "ruby-overhang") {=0A= e.style.rubyOverhang =3D value;=0A= }=0A= else if (name =3D=3D "ruby-position") {=0A= e.style.rubyPosition =3D value;=0A= }=0A= else if (name =3D=3D "scrollbar-3dlight-color") {=0A= e.style.scrollbar3dLightColor =3D value;=0A= }=0A= else if (name =3D=3D "scrollbar-arrow-color") {=0A= e.style.scrollbarArrowColor =3D value;=0A= }=0A= else if (name =3D=3D "scrollbar-base-color") {=0A= e.style.scrollbarBaseColor =3D value;=0A= }=0A= else if (name =3D=3D "scrollbar-darkshadow-color") {=0A= e.style.scrollbarDarkShadowColor =3D value;=0A= }=0A= else if (name =3D=3D "scrollbar-face-color") {=0A= e.style.scrollbarFaceColor =3D value;=0A= }=0A= else if (name =3D=3D "scrollbar-highlight-color") 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quoted-printable Content-Location: http://abstracts.iovs.org/javascript/entrez/callback.js /************************************************************************= *****=0A= * javascript/entrez/callback.js=0A= *=0A= * Entrez Linking callback to populate content box.=0A= *=0A= * Copyright 2006 Board of Trustees of the Leland Stanford Junior = University.=0A= = *************************************************************************= ***/=0A= =0A= /*=0A= * Execute callback to fill content box with Entrez Linking information.=0A= */=0A= function entrez_callback(pmid, callback_url) {=0A= /*=0A= * MSIE 5.5 and below have issues with the JavaScript=0A= * used for Entrez Linking. For now we have to disable=0A= * the callback until we can track down a proper fix=0A= * (or everybody sanely upgrades to version 6 or 7!).=0A= */=0A= if (navigator) {=0A= var appname =3D navigator.appName;=0A= if (appname =3D=3D "Microsoft Internet Explorer") {=0A= var userAgent =3D navigator["userAgent"];=0A= var s =3D "MSIE ";=0A= var n =3D -1; =0A= if ((n =3D userAgent.indexOf(s)) !=3D -1) {=0A= var v =3D parseFloat(userAgent.substring(n+s.length));=0A= if (v < 6) {=0A= return;=0A= }=0A= }=0A= }=0A= }=0A= =0A= /*=0A= * Acquire table row element to update, initiate callback=0A= * to update table with Entrez Links.=0A= */=0A= var tr =3D document.getElementById('entrez_callback_'+pmid);=0A= if (!tr) {=0A= return;=0A= }=0A= var req =3D new XMLHttpRequest();=0A= if (!req) {=0A= return;=0A= }=0A= req.onreadystatechange =3D function() {=0A= if (req.readyState =3D=3D 4 && (req.status =3D=3D 200 || req.status = =3D=3D 304)) {=0A= var src =3D req.responseXML.documentElement;=0A= var dst =3D document.createDocumentFragment();=0A= for (var i =3D 0; i < src.childNodes.length; i++) {=0A= copy_xml_to_html(src.childNodes[i], dst);=0A= }=0A= var tbl =3D tr.parentNode;=0A= tbl.replaceChild(dst, tr);=0A= }=0A= }=0A= req.open('GET', callback_url, true);=0A= req.send(null);=0A= }=0A= ------=_NextPart_000_0000_01CC1174.B92D3D10--
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