Carol Shields

Dr. Carol Shields

Wills Eye Hospital
+1
orcid

Research Focus & Metrics

Academic Career Length

33Years (1994-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
1 November 2015 in Retina
Verified
Journal Article
Closed access
WSWasim A. Samara
Wasim A. Samara
ESEmil A. T. Say
Emil A. T. Say
CKChloe T. L. Bs Khoo
Chloe T. L. Bs Khoo
THTimothy P. Bs Higgins
Timothy P. Bs Higgins
GMGeorge Nathaniel Magrath
George Nathaniel Magrath
Carol ShieldsCarol Shields
Carol Shields
Purpose: To analyze the foveal avascular zone (FAZ) in normal eyes using optical coherence tomography angiography. Methods: Prospective noncomparative case series. The parafoveal region of 70 eyes from 67 healthy subjects was imaged using optical coherence tomography angiography to visualize the superficial and deep capillary plexuses and correlated with standard macular volume scans using spectral domain optical coherence tomography to determine foveal morphology. Results: In all 70 eyes imaged, 2 vascular plexuses could be detected within the retina: a superficial plexus within the ganglion cell layer and a deep plexus within the inner nuclear layer. A measurable FAZ was visualized in both plexuses in all imaged eyes. The FAZ area was variable in the study population with a mean of 0.266 mm2 ± 0.097 mm2 in the superficial plexus (range: 0.071 mm2–0.527 mm2) and a mean of 0.495 mm2 ± 0.227 mm2 in the deep plexus (range: 0.160 mm2–0.795 mm2). The FAZ area was significantly larger in the deep plexus (P < 0.0001) compared with superficial plexus. The FAZ area in both plexuses correlated inversely with central macular thickness and central macular volume (P < 0.0001). No significant correlation was found between superficial plexus FAZ area and age (P = 0.55) or sex (P = 0.34). In the same manner, no significant correlation was found between deep plexus FAZ area and age (P = 0.13) or sex (P = 0.13). Conclusion: Optical coherence tomography angiography provides a noninvasive method to visualize and measure the superficial and deep plexus FAZ in a normal population. The FAZ can vary in size and shape, with the FAZ area significantly larger in the deep compared with the superficial plexus. Both superficial and deep FAZ area correlate inversely with foveal thickness and volume.

1 January 2020 in Indian Journal Of Ophthalmology
Verified
Journal Article
Open access
PDF file
Carol ShieldsCarol Shields
Carol Shields
DADavid Ancona-Lezama
David Ancona-Lezama
LDLaurenA Dalvin
LaurenA Dalvin
Retinoblastoma management remains complex, requiring individualized treatment based on International Classification of Retinoblastoma (ICRB) staging, germline mutation status, family psychosocial factors and cultural beliefs, and available institutional resources. For this 2020 retinoblastoma review, PubMed was searched for articles dated as early as 1931, with an emphasis on articles from 1990 to the present day, using keywords of retinoblastoma, chemotherapy, intravenous chemotherapy, chemoreduction, intra-arterial chemotherapy, ophthalmic artery chemosurgery, intravitreal chemotherapy, intracameral chemotherapy, cryotherapy, transpupillary thermotherapy, laser, radiation, external beam radiotherapy, plaque radiotherapy, brachytherapy, and enucleation. We discuss current treatment modalities as used in the year 2020, including intravenous chemotherapy (IVC), intra-arterial chemotherapy (IAC), intravitreal chemotherapy (IvitC), intracameral chemotherapy (IcamC), consolidation therapies (cryotherapy and transpupillary thermotherapy [TTT]), radiation-based therapies (external beam radiotherapy [EBRT] and plaque radiotherapy), and enucleation. Additionally, we present a consensus treatment algorithm based on the agreement of three North American retinoblastoma treatment centers, and encourage further collaboration amongst the world's most expert retinoblastoma treatment centers in order to develop consensus management plans and continue advancement in the identification and treatment of this childhood cancer.

1 January 2017 in American Journal of Ophthalmology
Verified
Journal Article
Closed access
Carol ShieldsCarol Shields
Carol Shields
AAAdel E. Alset
Adel E. Alset
NBNina S. Boal
Nina S. Boal
MCMairghread G. Casey
Mairghread G. Casey
AKAusten N. Knapp
Austen N. Knapp
JSJerry A. Shields
Jerry A. Shields

1 January 2019 in Indian Journal Of Ophthalmology
Verified
Journal Article
Open access
PDF file
Carol ShieldsCarol Shields
Carol Shields
MSMrittika Sen
Mrittika Sen
SHSantosh G Honavar
Santosh G Honavar
JSJerryA Shields
JerryA Shields
Coats disease is an idiopathic retinal vascular disorder with retinal telangiectasia with intraretinal and/or subretinal exudation without appreciable retinal or vitreal traction. The condition is sporadic with no associated systemic abnormalities. Unilateral involvement in young males is the typical presentation with most cases being diagnosed in the first and second decade of life. Younger the patient, more severe is the presentation and poorer the visual outcome. The management varies with the stage of the disease. Over the years, we have shifted from enucleation to a more conservative approach for the treatment of Coats disease with laser photocoagulation, cryotherapy and surgery for retinal detachment achieving good outcomes. The anti-VEGF agents have come into the scene as important form of adjuvant treatment along with the traditional management options. This article describes the clinical features, underlying pathology, classification and staging, the complications and the management of Coats disease and gives an overview of the changing trends in treatment and outcomes spanning across five decades.

1 January 2018 in Middle East African Journal of Ophthalmology
Verified
Journal Article
Open access
PDF file
Carol ShieldsCarol Shields
Carol Shields
RWR Joel Welch
R Joel Welch
KMKunal Malik
Kunal Malik
LALuisA Acaba-Berrocal
LuisA Acaba-Berrocal
ESEvan B Selzer
Evan B Selzer
JSJerryA Shields
JerryA Shields
PURPOSE: The purpose of this study is to evaluate patients with uveal metastasis based on primary tumor site. METHODS: Retrospective analysis from Wills Eye Hospital, Philadelphia, PA, USA, for uveal metastasis clinical features and outcomes based on the primary tumor site. RESULTS: There were 2214 uveal metastases diagnosed in 1111 consecutive patients. The demographics included mean age of 60 years (median 61 years), Caucasian race (88%), and female gender (64%). The tumor was unilateral (82%) and primary site was established before uveal metastasis (67%). The primary tumor originated in the breast (37%), lung (26%), kidney (4%), gastrointestinal (GI) tract (4%), cutaneous melanoma (2%), lung carcinoid (2%), prostate (2%), thyroid (1%), pancreas (1%), other sites (3%), and unknown (16%). Comparative analysis of the 5 most common primary sites (breast, lung, kidney, GI tract, and cutaneous melanoma), revealed metastasis at mean age (57, 62, 66, 61, 59 years), as unilateral tumor (74%, 86%, 85%, 93%, 85%), with mean number of metastasis/eye (1.9, 1.7, 1.0, 1.1, 2.0), and in females (99%, 46%, 26%, 25%, 30%). Choroidal metastases measured mean base (9.3, 10.2, 9.1, 11.0, 7.3 mm), mean thickness (2.4, 3.6, 4.4, 4.0, 2.9 mm), and demonstrated predominant color yellow (94%, 91%, 56%, 97%, 36%). Of the 769 patients with documented follow-up, mean patient survival was poor (22.2, 11.5, 8.6, 12.4, 11.4 months) and Kaplan–Meier analysis revealed 3-year survival (33%, 19%, 0%, 14%, 21%) and 5-year survival (24%, 13%, 0%, 14%, 21%). The worst survival was found in patients with pancreatic metastasis (mean 4.2 months) and best survival with lung carcinoid (92% at 5 years). CONCLUSION: In a tertiary referral service, uveal metastasis originates from cancer in the breast, lung, kidney, GI tract, cutaneous melanoma, or others. Overall prognosis is poor with 5-year survival at 23% and worst survival with pancreatic metastasis whereas best survival with lung carcinoid metastasis.

1 June 2018 in Journal of Current Ophthalmology
Verified
Journal Article
Open access
BMBabak Masoomian
Babak Masoomian
JSJerry A. Shields
Jerry A. Shields
Carol ShieldsCarol Shields
Carol Shields
The aim of this study was to review the genetics, epidemiology, clinical findings, and management of BRCA1-associated protein-1 (BAP1) cancer predisposition syndrome, particularly focusing on the development of uveal melanoma (UM). This is a review article based on eligible studies identified by systematically searching PubMed, Web of Science, and reference lists. UM is the most common primary intraocular malignancy. Most UM cases are sporadic, but a small percentage has been documented with familial tendency. Until recently, there was little information regarding the genetics of this malignant tumor, and we have now begun to understand the pathways of development. BAP1 is a scavenger protein that regulates cell cycle, cellular differentiation, and DNA damage response. Patients and families with germline BAP1 mutation are predisposed to familial cancers including UM, mesothelioma, cutaneous melanoma (CM), renal cell carcinoma (RCC), and others. Clinicians should be aware of the implications of germline BAP1 mutation and advise genetic testing and assessment for BAP1 germline mutation in suspected patients and families. The ability of BAP1 gene mutation to cause multiple tumor types and high penetrance in carriers suggests that this gene has an important role for influencing cancer cell growth. With progress in understanding the molecular landscape of UM and the development of treatments targeted to the pathways involving BAP1 and other gene mutations, it is possible to improve the outcome of this malignant cancer.