The method of dilation varies depending on the area being treated:
1. Pupil Dilation: Eye drops are administered to dilate the pupils. This is usually done 15-30 minutes before the examination. 2. Gastrointestinal Dilation: A balloon catheter is often used. The balloon is inserted endoscopically and then inflated to dilate the narrowed segment. 3. Urinary Tract Dilation: Similar to gastrointestinal dilation, a balloon catheter is used to dilate the narrowed urinary tract.
