If using this website and if you have a scroll wheel on the mouse just hold the Ctrl button down and turn the scroll wheel till you get the size that suits you. That may help but Crossbow7's solution should work better.
Win 7 again, move cursor over any icon and with finger pad left click once. Press and hold CTRL key than use the scroll function on fingerpad to enlarge icons and text. The wheel on the mouse if you use one.
I have copied most of what I wrote in this recent related thread (click here).
"Try these one at a time. If you're not happy with the results, return & increase or decrease accordingly:
'Save' means clicking the Apply &/or OK buttons to save settings:
1. Right-click (on desktop) > Properties > Appearance. Change the font size to Large Fonts (or try Extra Large Fonts) & save.
2. Right-click (on desktop) > Properties > Appearance > Advanced > access the drop down menu under 'Item:'. Increase settings here for each one as applicable to suit & save.
3. Right-click (on desktop) > Properties > Appearance > Advanced > Effects. Tick only the 2nd (choose ClearType), 3rd & 4th boxes & save. Visit click here to fine-tune it.
4. Right-click (on desktop) > Properties > Settings > Advanced > General tab. Under Display > DPI setting select 'Custom setting' & choose a greater value than what's already in the box & save. Go easy on this - i.e. don't increase too much before checking what overall effect it has had. If things look a bit skewed or overlap, especially in web browsers, this is the first one to reduce or revert to the default value.
5. In Internet Explorer (IE) > View > Text Size & change to Larger or Largest. In Firefox, it's View > Zoom > Zoom Text Only. In the browsers, you can also press the Shift key while simultaneously rotating the mouse wheel to increase/decrease picture & text size.
6. Start > Control Panel > Mouse > Pointers tab. Chose 'Windows Standard (extra large)....". Then under the Pointer Options tab, put a tick in the 'Enhance pointer precision' & 'Show location of your pointer when I press the Ctrl key' (later is useful for when you've lost the pointer on the screen).
You may have to keep returning to the above to tweak further as required.
I don't have a vision problem, but I have adopted most of the above to varying degrees over the past several years (also using XP Pro on one of my PCs), & ever since I began using a larger monitor & resolution. G"