The patients that complain that their under-eyes have an empty appearance, and bruises and fat pockets in their under-eyes are getting bigger are usually candidates for this treatment. Picking patients that are suitable for under-eye light filling treatment is a process that requires expert opinion. Perfect candidates should have a good skin flexibility and adequate skin thickness. Because of these reasons, not everyone can be a good candidate for under-eye light filling treatment. In addition, innovative ways are sometimes found to treat the patients that are not ideal candidates. This sometimes includes gradual treatments.