for the longer menu items, you can set an inline width to make it larger. for example:
<li><a href="About.php">About</a></li>
<li><a href="Vision_Disorders.php" style="width:140px;">Vision Disorders</a></li>
In this example, the width used for the about link will be the width setting you use in the Menu Writer Wizard. The width used for the Vision Disorders link will be 140px.