Treatment outcomes in retinoblastoma and the effect of tumor topography.

Background: Retinoblastoma, the most common intraocular malignancy in children, has high fatality rates if untreated. It is crucial to monitor treatment effectiveness and explore factors influencing favorable outcomes. Our study aims to examine how tumor location impacts the response to standard treatments and the achievement of favorable outcomes among retinoblastoma patients, while controlling for other tumor-related factors.

Ocular surface complications in children undergoing general anaesthesia: A prospective observational study.

Objective: Ophthalmic complications frequently occur after procedures requiring general anaesthesia, but their incidence is widely variable and not well reported in the paediatric population. The aim was to identify the incidence and possible risk factors of postoperative ocular surface complications in a tertiary care centre.

Methods And Analysis: This is a prospective study for paediatric patients undergoing general anaesthesia.

Long-term surgical outcomes of one-muscle vs. two-muscle horizontal strabismus surgery.

Purpose: While horizontal strabismus surgery is generally considered to have favorable outcomes, success rates can vary by type of procedure. Our purpose is to compare the long-term outcomes of patients who underwent one-muscle vs. two-muscle horizontal strabismus surgery.

Ophthalmic injuries from the beirut blast: Managing long-term consequences.

The 2020 Beirut Port explosion was one of the largest non-nuclear urban explosions in history, and resulted in a plethora of oculofacial injuries. In this retrospective study, we present the two year follow up ophthalmic outcomes of the survivors of the blast. Only 16 out of 39 patients continued follow up at our center, with 13 having delayed complications and 7 requiring further surgery.

Whole-exome screening for primary congenital glaucoma in Lebanon.

Purpose: Mutations were previously identified in the CYP1B1 gene in six out of 18 Lebanese families (33%) with primary congenital glaucoma (PCG). The purpose of this study is to determine the frequency and type of pathogenic mutations in other genes and compare to other populations using whole-exome sequencing and perform genotype-phenotype correlations.

Methods: Twelve PCG patients previously negative for CYP1B1/MYOC mutations were subjected to whole-exome sequencing.

The yield of neuroimaging in patients presenting to the emergency department with isolated neuro-ophthalmological complaints: A retrospective chart review.

Neuro-ophthalmological emergencies require prompt assessment and management to avoid vision or life-threatening sequelae. The decision to perform a neuroimaging procedure is based on the clinical judgment of the medical team, without defined indications. This study aims to identify presenting symptoms and physical exam findings associated with relative positive findings on neuroimaging studies.

Effect of the COVID-19 Lockdown on Myopia Progression of School-aged Children: A Retrospective Chart Review.

Purpose: To study the effect of the coronavirus disease 2019 (COVID-19)-related lockdown on myopia progression of school-aged children, comparing across the years and within different age groups.

Methods: This was a retrospective chart review of school-aged children with myopia who presented to the pediatric ophthalmology clinic at the American University of Beirut between January 2020 and December 2021 (during COVID-19 lockdown). Annual myopia progression rate (back to January 2016) was computed by dividing the absolute value of the spherical equivalent (SE) difference of two consecutive visits by the duration (in years).

A Comparison of the Long-Term Surgical Outcomes of Horizontal Strabismus Surgery between Resident Clinic and Private Clinic Patients.

Purpose: To compare the long-term surgical outcomes of patients with horizontal strabismus whose surgery was performed in an outpatient department (OPD) setting (by residents-in-training) to those whose surgery was performed in a private clinic (PC) setting (by staff-ophthalmologists) in the same operating room/institution.

Methods: Two hundred and forty-four patients' charts who had horizontal strabismus surgeries from January 2007 to 2020 were reviewed retrospectively. A total of 92 patients were operated on by residents and followed in OPD, and 152 patients by staff-surgeons and followed in PC.

Hydatid cyst: Introducing a new surgical approach towards hepato-pulmonary fistula, a case report.

Introduction And Importance: Hydatid disease, caused by the zoonotic parasite Echinococcus granulosus, presents as cysts most commonly in the liver and the lungs. A hepato-pleural fistula is considered one of its complications and surgery remains the mainstay of treatment. A simultaneous invasive thoracic and abdominal access is routinely needed which is accompanied by increased morbidity and mortality.

Characteristics and long-term surgical outcomes of horizontal strabismus.

Purpose: Our aim was to report the characteristics and long-term surgical outcomes of three subgroups of horizontal strabismus in a single institution (divided by strabismus subtype) in a developing country and look into pre-operative factors predictive of surgical success.

Methods: Two hundred and forty-four complete charts of patients, divided into 152 esotropes (ET) and 92 exotropes (XT) who had undergone horizontal strabismus surgeries, were retrospectively reviewed. Charts of patients with muscle palsy, Duane syndrome and consecutive strabismus were excluded; 172 patients were included divided into partially accommodative ET, congenital ET and intermittent XT.

Consanguinity rates among Syrian refugees in Lebanon: a study on genetic awareness.

Consanguineous marriage is a deeply rooted tradition in the Arab world. Such marriages are linked to higher rates of recessive genetic diseases. During the Syrian conflict, which started in 2011, around one million Syrian individuals became refugees in Lebanon.