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Periocular Region

About: Periocular Region is a research topic. Over the lifetime, 256 publications have been published within this topic receiving 4424 citations.


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Journal ArticleDOI
TL;DR: Surgical excision remains the standard of care for the majority of periorbital malignancies, but given the sensitive anatomic location, tissue‐sparing techniques with margin control such as Mohs micrographic surgery are the preferred method for most nonmelanoma skin cancers.
Abstract: Background The periocular skin is susceptible to numerous benign and malignant neoplasms. Periocular malignancies may present differently, behave more aggressively, and pose greater challenges for treatment and repair than malignancies at other cutaneous sites. Between 5% and 10% of cutaneous malignancies occur periorbitally, with basal cell carcinoma reported as the most common malignant periocular tumor, followed by squamous cell carcinoma, sebaceous gland carcinoma, cutaneous melanoma, Merkel cell carcinoma, and other rare tumors. Objective To review the current literature on cutaneous malignancies of the periocular region pertaining to etiology, incidence, clinical presentation, differential diagnosis, complications, and treatment options. Materials and methods An extensive literature review was conducted using PubMed, searching for articles on periocular and periorbital cutaneous malignancies. Conclusions Timely diagnosis and management of periocular malignancies is essential because of their proximity to and potential to invade vital structures such as the orbit, sinuses, and brain. Surgical excision remains the standard of care for the majority of periorbital malignancies, but given the sensitive anatomic location, tissue-sparing techniques with margin control such as Mohs micrographic surgery are the preferred method for most nonmelanoma skin cancers. Depending on tumor type, other treatment modalities may include radiation, chemotherapy, cryosurgery, topical medications, and photodynamic therapy.

68 citations

Journal ArticleDOI
TL;DR: The role of clinically necessary aggressive subcutaneous debridement with limited excision of necrotic skin in treating necrotizing faciitis is illustrated, while demonstrating the histopathologic basis of orbital spread and blindness complicating this disorder.

67 citations

Proceedings ArticleDOI
09 Jan 2012
TL;DR: An acquisition and recognition system based only on periocular biometric using the COTS PTZ camera to tackle the difficulty that the full face recognition approach has encountered in highly unconstrained real-world scenario, especially for capturing and recognizing uncooperative and non-cooperative subjects with expression, closed eyes, and facial occlusions is proposed.
Abstract: We propose an acquisition and recognition system based only on periocular biometric using the COTS PTZ camera to tackle the difficulty that the full face recognition approach has encountered in highly unconstrained real-world scenario, especially for capturing and recognizing uncooperative and non-cooperative subjects with expression, closed eyes, and facial occlusions. We evaluate our algorithm on the periocular region and compare that to the performance of the full face on the Compass database we have collected. The results have shown that the periocular region, when tackling unconstrained matching, is a much better choice than the full face for face recognition even with less than 2/5 the size of the full face. To be more specific, the periocular matching across all facial manners, i.e., neutral expression, smiling expression, closed eyes, and facial occlusion, is able to achieve 60.7% verification rate at 0.1% false accept rate, a 16.9% performance boost over the full face.

65 citations

Journal ArticleDOI
TL;DR: The data reveal a novel and essential role of Sema3A/Npn-1 signaling in coordinating periocular neural crest migration that is vital for proper ocular development.

56 citations

Proceedings ArticleDOI
11 Nov 2010
TL;DR: Eyelashes, tear ducts, shape of the eye, and eyelids were used most frequently in determining whether two images were from the same person, and the outer corner of theEye and the shape ofThe eye were used a higher proportion of the time for incorrect responses than they were for correct responses, suggesting that those two features are not as useful.
Abstract: The periocular region is the part of the face immediately surrounding the eye, and researchers have recently begun to investigate how to use the periocular region for recognition. Understanding how humans recognize faces helped computer vision researchers develop algorithms for face recognition. Likewise, understanding how humans analyze periocular images could benefit researchers developing algorithms for periocular recognition. We presented pairs of periocular images to testers and asked them to determine whether the two images were from the same person or from different people. Our testers correctly determined the relationship between the two images in over 90% of the queries. We asked them to describe what features in the images were helpful to them in making their decisions. We found that eyelashes, tear ducts, shape of the eye, and eyelids were used most frequently in determining whether two images were from the same person. The outer corner of the eye and the shape of the eye were used a higher proportion of the time for incorrect responses than they were for correct responses, suggesting that those two features are not as useful.

56 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20221
202113
202032
201929
201815
201719