Background: The Severe Acute Respiratory Syndrome Coronavirus 2 (COVID-19) pandemic has limited patient access to outpatient care, prompting many clinicians to incorporate telemedicine in their practice. This study aims to explore the impact of the pandemic on the use of tele-ophthalmology in the Philippines. Methodology: A 30-item online survey on practices and attitudes related to teleophthalmology was sent to ophthalmologists and ophthalmologists-in-training all over the Philippines. Results: A total of 327 local ophthalmologists responded to the anonymous survey. Reported use of tele-ophthalmology increased from 53% to 90% (P < 0.001) at the time of the COVID-19 pandemic. Social media messaging was the most employed modality, utilized by 8 out of 10 tele-ophthalmology users. Respondents reported confidence in diagnosing gross conditions of the eye, and lack of confidence in diagnosing posterior pole conditions and orbital fractures. The majority (84%) believe that it can be adopted on a wider scale in the upcoming years. Conclusion: The pandemic catalyzed a nationwide increase in the utilization of teleophthalmology. The majority of respondents expressed willingness to continue incorporating tele-ophthalmology in their practice after the pandemic.
Animal models are crucial for the study of tumorigenesis and therapies in oncology research. Though rare, uveal melanoma (UM) is the most common intraocular tumor and remains one of the most lethal cancers. Given the limitations of studying human UM cells in vitro, animal models have emerged as excellent platforms to investigate disease onset, progression, and metastasis. Since Greene’s initial studies on hamster UM, researchers have dramatically improved the array of animal models. Animals with spontaneous tumors have largely been replaced by engrafted and genetically engineered models. Inoculation techniques continue to be refined and expanded. Newer methods for directed mutagenesis have formed transgenic models to reliably study primary tumorigenesis. Human UM cell lines have been used to generate rapidly growing xenografts. Most recently, patient-derived xenografts have emerged as models that closely mimic the behavior of human UM. Separate animal models to study metastatic UM have also been established. Despite the advancements, the prognosis has only recently improved for UM patients, especially in patients with metastases. There is a need to identify and evaluate new preclinical models. To accomplish this goal, it is important to understand the origin, methods, advantages, and disadvantages of current animal models. In this review, the authors present current and historic animal models for the experimental study of UM. The strengths and shortcomings of each model are discussed and potential future directions are explored.
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