Prediction model to predict type 1 retinopathy of prematurity using gestational age and birth weight (PW-ROP).

Purpose: To develop a prediction model for type 1 retinopathy of prematurity (ROP) from an Asian population.

Methods: This retrospective cohort study included 1043 premature infants who had ROP screening in a tertiary hospital in Hong Kong from year 2006 to 2018. The ROP prediction model was developed by multivariate logistic regression analyses on type 1 ROP.

Deep Learning Algorithm for Automated Diagnosis of Retinopathy of Prematurity Plus Disease.

Purpose: This study describes the initial development of a deep learning algorithm, ROP.AI, to automatically diagnose retinopathy of prematurity (ROP) plus disease in fundal images.

Methods: ROP.

Effects of orthodontic appliances on the diagnostic capability of magnetic resonance imaging in the head and neck region: A systematic review.

Objectives: Patients in active fixed orthodontic treatment or fixed retention phase may require magnetic resonance (MR) scans of the head and neck region. Orthodontists are challenged to decide whether to keep or remove orthodontic appliances prior to the scans. The aim of this study was to determine the effect of orthodontic appliances on the diagnostic capability of MR images.

An in vitro comparison of ultraviolet versus white light in the detection of adhesive remnants during orthodontic debonding.

Objectives: To assess the effectiveness and efficiency of ultraviolet (UV) illumination compared to conventional white light in the detection of fluorescent-tagged adhesive remnants during orthodontic debonding.

Materials And Methods: Orthodontic brackets were bonded to extracted human premolars using one of two bonding resins having fluorescent properties (Pad Lock, Reliance Orthodontics, Itasca, Ill; Opal Bond MV, Opal Orthodontics, South Jordan, Utah; n = 40 each). The brackets were then debonded and, in each adhesive group, half the teeth had the remaining adhesive resin removed under illumination using the operatory light and the other half using a UV (395 nm) light emitting diode (LED) flashlight (n = 20/group).

Defects in the Cell Signaling Mediator β-Catenin Cause the Retinal Vascular Condition FEVR.

Familial exudative vitreoretinopathy (FEVR) is an inherited blinding disorder characterized by the abnormal development of the retinal vasculature. The majority of mutations identified in FEVR are found within four genes that encode the receptor complex (FZD4, LRP5, and TSPAN12) and ligand (NDP) of a molecular pathway that controls angiogenesis, the Norrin-β-catenin signaling pathway. However, half of all FEVR-affected case subjects do not harbor mutations in these genes, indicating that further mutated genes remain to be identified.

ExPRESS Mini-Shunt as a Treatment Alternative for Medically Uncontrolled Steroid-Induced Glaucoma in a Pediatric Patient.

This case report illustrates the use of ExPRESS mini-shunt in a pediatric glaucoma patient. We describe the management of steroid-induced glaucoma with ExPRESS mini-shunt in a 9-year-old boy with allergic keratoconjunctivitis. The intraocular pressure of both of his eyes was uncontrolled with medical and laser treatment.

A simple modification to the 25-gauge trocar and cannula system for retinopathy of prematurity related lens-sparing vitrectomy.

Background: Recently, 25-gauge vitrectomy has become more popular. However, most still perform the surgery in pediatric patients without the use of the trocars and cannulas as in adult vitrectomies.

Methods: We described a simple modification using adult 25-gauge cannulas and 270-silicone watzke sleeves, enabling these instruments to be used in pediatric cases.

Three different ophthalmic presentations of juvenile xanthogranuloma.

Three cases of juvenile xanthogranuloma from two ophthalmology departments were reviewed. Clinical histories, ophthalmic examination, physical examination, investigations, and treatment of these cases are described. A 4-month-old boy presented with spontaneous hyphema and secondary glaucoma.

Change in vision disorders among Hong Kong preschoolers in 10 years.

Background: To determine the change in refractive error and the prevalence of amblyopia and strabismus among preschool children in Hong Kong over a period of 10 years.

Design: Two cross-sectional population-based studies conducted in 1996 to 1997 (part A) and 2006 to 2007 (part B) PARTICIPANTS: Children attending randomly selected kindergarten participated in the study.

Methods: Ocular alignment, visual acuity, cover and uncover tests, cycloplegic refraction, slit-lamp and fundi examination were performed under a standardized testing environment.

Bilateral exudative retinal detachments as the presenting features of idiopathic orbital inflammation.

Idiopathic orbital inflammation, also known as orbital pseudotumour, is a term describing a spectrum of idiopathic, non-neoplastic, non-infectious, space-occupying orbital lesion without identifiable local or systemic cause. This disease occurs mainly in young adults and typically presents with acute proptosis, chemosis and limited extraocular movement. Herein an unusual case of idiopathic orbital inflammation presenting with bilateral exudative retinal detachment in a 9-year-old girl is described.