Acquired, Idiopathic, Patterned Facial Pigmentation (AIPFP) including periorbital pigmentation and pigmentary demarcation lines on face follows the Lines of Blaschko on face

Pigmentary demarcation lines over the face.

BACKGROUND We have been observing that a significant proportion of our patients, especially females, have certain pigmentary demarcation lines (PDL) over the face. However, systematic studies of the subject are lacking. AIMS We categorized the different clinical patterns of facial PDLs in the Indian subpopulation and assessed their prevalence in this study. METHODS About 4000 consecutive pa...

Periorbital melanosis is an extension of pigmentary demarcation line-F on face.

BACKGROUND To date, periorbital melanosis is an ill-defined entity. The condition has been stated to be darkening of the skin around the eyes, dark circles, infraorbital darkening and so on. AIMS This study was aimed at exploring the nature of pigmentation in periorbital melanosis. METHODS One hundred consecutive patients of periorbital melanosis were examined and investigated to define per...

Pigmentary demarcation lines in pregnancy.

The role of pigmentation in face perception

Faces each have distinct pigmentation as well as shape, which suggests that both cues may play a role in the perception of faces. However, there is a common implicit assumption that pigmentation cues are relatively unimportant, and so the role pigmentation plays in face perception has gone largely unexplored. This thesis is a systematic investigation of the role of pigmentation in face recognit...

Pigmentary Glaucoma with Retinochoroidal Pigmentation

Pigmentary glaucoma (PG) is considered as an entity within the spectrum of secondary open angle glaucomas. The condition usually starts in the third or fourth decades of life with disruption of the iris pigment epithelium. The released pigment granules deposit on anterior segment structures such as the corneal endothelium, trabecular meshwork and lens/zonules. This stage is known as primary pig...