Global Retinoblastoma Study Group IMPORTANCE Early diagnosis of retinoblastoma, the most common intraocular cancer, can save both a child's life and vision. However, anecdotal evidence suggests that many children across the world are diagnosed late. To our knowledge, the clinical presentation of retinoblastoma has never been assessed on a global scale.OBJECTIVES To report the retinoblastoma stage at diagnosis in patients across the world during a single year, to investigate associations between clinical variables and national income level, and to investigate risk factors for advanced disease at diagnosis. DESIGN, SETTING, AND PARTICIPANTSA total of 278 retinoblastoma treatment centers were recruited from June 2017 through December 2018 to participate in a cross-sectional analysis of treatment-naive patients with retinoblastoma who were diagnosed in 2017. MAIN OUTCOMES AND MEASURESAge at presentation, proportion of familial history of retinoblastoma, and tumor stage and metastasis. RESULTSThe cohort included 4351 new patients from 153 countries; the median age at diagnosis was 30.5 (interquartile range, 18.3-45.9) months, and 1976 patients (45.4%) were female. Most patients (n = 3685 [84.7%]) were from low-and middle-income countries (LMICs). Globally, the most common indication for referral was leukocoria (n = 2638 [62.8%]), followed by strabismus (n = 429 [10.2%]) and proptosis (n = 309 [7.4%]). Patients from high-income countries (HICs) were diagnosed at a median age of 14.1 months, with 656 of 666 (98.5%) patients having intraocular retinoblastoma and 2 (0.3%) having metastasis. Patients from low-income countries were diagnosed at a median age of 30.5 months, with 256 of 521 (49.1%) having extraocular retinoblastoma and 94 of 498 (18.9%) having metastasis. Lower national income level was associated with older presentation age, higher proportion of locally advanced disease and distant metastasis, and smaller proportion of familial history of retinoblastoma. Advanced disease at diagnosis was more common in LMICs even after adjusting for age (odds ratio for low-income countries vs upper-middle-income countries and HICs, 17.92 [95% CI,, and for lower-middle-income countries vs upper-middle-income countries and HICs, 5.74 [95% CI,). CONCLUSIONS AND RELEVANCEThis study is estimated to have included more than half of all new retinoblastoma cases worldwide in 2017. Children from LMICs, where the main global retinoblastoma burden lies, presented at an older age with more advanced disease and demonstrated a smaller proportion of familial history of retinoblastoma, likely because many do not reach a childbearing age. Given that retinoblastoma is curable, these data are concerning and mandate intervention at national and international levels. Further studies are needed to investigate factors, other than age at presentation, that may be associated with advanced disease in LMICs.

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BackgroundOrbital exenteration is a disfiguring procedure that aims to achieve local control. It is commonly a part of the management of malignant orbital tumor which is a life-threatening condition. It is necessary to determine predictive factors associated with overall survival (OS) following orbital exenteration.MethodsThis was a retrospective, comparative, case series of 39 patients with malignant tumors who underwent orbital exenteration. Patient records were reviewed for age, clinical presentation, preoperative visual acuity (VA), tumor size, surgical margin, tumor invasiveness, recurrent disease, and status of distant metastasis. Kaplan-Meier curves were used to assess OS and event-free survival (EFS). The predictive factors related to OS were identified using multivariate analysis.ResultsThe mean age was 62.9 years (range, 5.5 to 89.7 years), 68.4% presented with VA < 20/400. The mean size of all tumors was 32 ± 18 mm. Distant metastasis at diagnosis was reported in 11 patients (28.2%). Twenty-two patients died during follow-up. The median OS and EFS were 3.89 years and 3.01 years, respectively. The predictive factors for worse OS on multivariate analysis were preoperative VA < 20/400 (adjusted hazard ratio [aHR] 4.67, P = 0.003), tumor size larger than 20 mm (aHR 3.14, P = 0.022,) and positive distant metastasis at diagnosis (aHR 15.31, P <  0.001).ConclusionsThe prognostic factors for poor survival outcome following orbital exenteration were a preoperative VA < 20/400, tumor size > 20 mm, and distant metastasis at diagnosis mostly due to patient negligence.

Background: To compare the efficacy between Johnson's baby shampoo top-to-toe (No More Tears formula) and OCuSOFT Lid Scrub Original Foaming Eyelid Cleanser (OSO) in patients with grade 2 meibomian gland dysfunction (MGD). Methods: Sixty participants with grade 2 MGD were enrolled and analyzed based on intention to treat basis in a prospective, randomized, single-blind trial for eye scrub using either diluted baby shampoo or OSO. The data collection included the Ocular Surface Disease Index (OSDI) questionnaire, compliance, and complications. The eye examinations were according to the Tear Film and Ocular Surface Society at baseline and at post-treatment weeks 4 and 12. Results: The mean (±SD) age of the 60 patients who presented with grade 2 MGD was 48.0 ± 13.8 years and 75.0% were females. The OSDI scores of these participants between pre-treatment and post-treatment weeks 4 and 12 improved significantly in both groups (all P < .001). The mean (±SD) differences of the improvement of OSDI score from baseline were not statistically significantly different between the baby shampoo and OSO groups at post-treatment weeks 4 and 12 (P = .57 and P = .54, respectively). The compliance and complications were also not statistically significant between the 2 groups. Conclusions: Eyelid scrub using either baby shampoo or OSO and warm compresses could significantly reduce eye irritability and uncomfortable symptoms in grade 2 MGD patients. In this study, the efficacy, compliance, and complications between the 2 groups were not statistically significantly different.

Background: This study is aimed to survey the confidence levels as well as clinical experience of Thai medical graduates in performing essential procedures.