According to the American Optometric Association (AOA), children generally should have their first eye exam at 6 months of age, another exam at age three and again at the start of school. Risk-free children should then continue to have their eyes examined every two years until age 18. Children with risk factors for vision problems may need their first eye exam earlier than 6 months of age and may need more frequent eye exams throughout childhood. Examples of risk factors include:
To check for well-formed or valid XML. Note In order to check that XML files are valid, they must have an associated XML Schema. For more information on associating a schema with your XML file, see Assigning Schemas to XML Files.1  Load the XML file you want to check into the XML Designer.2  From the XML menu select Validate XML Data.ote In order to check that XML files are valid, they must have an associated XML Schema. For more information on associating a schema with your XML file, see Assigning Schemas to XML Files. 1  Load the XML file you want to check into the XML Designer.
Two Methods: Opening XML Files with a Browser View and Edit XML Files on Windows. XML stands for extensible markup language. HTML is a version of XML used to generate web pages in browsers. The nice thing about XML is that you can use any tags you want and organize them in any way.pen an XML file with Notepad XML. Open Notepad XML. Click the File menu, and then click Open. Find an XML file on your computer, and then click Open.