Publications by authors named "Christiana Dinah"

Purpose: To present the longitudinal, multimodal imaging of Bilateral Diffuse Uveal Melanocytic Proliferation secondary to gallbladder carcinoma over a 17 month period, demonstrating the natural history, the evolution with treatment and salient features to support timely diagnosis of this condition with life-threatening associations.

Observations: A systemically well 73 year old woman presented with a 2 month history of progressive visual loss in the right eye. We report the initial findings on clinical examination and with retinal imaging including fluorescein and indocyanine angiography, optical coherence tomography and autoflourescence.

View Article and Find Full Text PDF

Importance: There are reported benefits from vitrectomy for diabetic macular edema (DME); however, data precede anti-vascular endothelial growth therapy (VEGF) therapy, supporting a need to assess the current role of vitrectomy.

Objective: To determine rates of recruitment and efficacy outcomes of vitrectomy plus internal limiting membrane (ILM) peeling adjunctive to treat-and-extend (T&E) anti-VEGF injections for diabetic macular edema (DME).

Design, Setting, And Participants: This was a single-masked, multicenter randomized clinical trial at 21 sites in the United Kingdom from June 2018 to January 2021, evaluating single eyes of treatment-naive patients with symptomatic vision loss from DME for less than 1 year.

View Article and Find Full Text PDF

Objectives: To validate and update the 2013 James Lind Alliance (JLA) Sight Loss and Vision Priority Setting Partnership (PSP)'s research priorities for Ophthalmology, as part of the UK Clinical Eye Research Strategy.

Methods: Twelve ophthalmology research themes were identified from the JLA report. They were allocated to five Clinical Study Groups of diverse stakeholders who reviewed the top 10 research priorities for each theme.

View Article and Find Full Text PDF
Article Synopsis
  • Sickle cell disease (SCD) is a common genetic condition in the UK affecting over 15,000 people, and it can cause a serious eye problem called proliferative sickle cell retinopathy (SCR), which may lead to vision loss.
  • The Sickle Eye Project is a study aimed at finding out how many SCD patients have visual impairments due to SCR and other eye issues by examining patients in various hospitals and clinics across the UK.
  • The study will also look at how different factors like age and genetics affect eye health and quality of life for those with SCD, plus how comfortable patients are with routine eye screenings.
View Article and Find Full Text PDF

The impact of visual impairment in the context of sickle cell disease is poorly understood. Despite the significant advancements over the past three decades in retinal imaging and in the understanding of molecular mechanisms that drive retinal neovascularization, there has been little improvement in the management of proliferative sickle cell retinopathy. This article is co-authored by a patient impacted by proliferative sickle cell retinopathy.

View Article and Find Full Text PDF

Introduction: Geographic atrophy (GA) is the advanced form of the non-neovascular ('dry') type of age-related macular degeneration (AMD). Previously untreatable, complement inhibitors delivered by regular intravitreal injections have recently been demonstrated to slow down the progression of GA lesions in phase 3 trials. One such treatment, Syfovre (pegcetacoplan), was approved by the US Food and Drug Administration in February 2023.

View Article and Find Full Text PDF
Article Synopsis
  • Geographic Atrophy (GA) is a severe form of dry age-related macular degeneration causing significant blindness, with new intravitreal therapies, like pegcetacoplan and avacincaptad pegol, recently approved in the US that slow GA progression but don't stop or reverse it.
  • A study evaluated how 28 participants weighed the benefits and risks of GA treatments through a forced-choice exercise, highlighting a preference for less frequent treatments that may harbor lower risks, even if they are slightly less effective.
  • The findings illustrate the complex, personal decision-making involved in choosing GA treatments, showing how different individuals prioritize factors like treatment frequency and potential side effects differently.
View Article and Find Full Text PDF

Background/objectives: The acceptability of emerging intravitreal therapies for patients with Geographic Atrophy (GA) is currently unknown. This study therefore aimed to investigate the extent to which regular intravitreal injections may be acceptable to GA patients.

Subjects/methods: Thirty UK-based individuals with GA secondary to age-related macular degeneration (AMD), recruited from two London-based hospitals, were interviewed in April-October 2021 regarding acceptability of new GA treatments.

View Article and Find Full Text PDF

Purpose: Geographic atrophy (GA) is the advanced form of the non-neovascular (dry) type of age-related macular degeneration. Presently, GA cannot be treated. However, new therapies administered by intravitreal injection are in late-stage development.

View Article and Find Full Text PDF

Introduction: Recent years have witnessed an upsurge of demand in eye care services in the UK. With a large proportion of patients referred to Hospital Eye Services (HES) for diagnostics and disease management, the referral process results in unnecessary referrals from erroneous diagnoses and delays in access to appropriate treatment. A potential solution is a teleophthalmology digital referral pathway linking community optometry and HES.

View Article and Find Full Text PDF

Background: Diabetic macular oedema (DMO) is the leading cause of sight impairment in working age populations in developed countries. Current first line treatment for centre-involving DMO involves intravitreal anti-VEGF but treatment response can be variable. In this retrospective, real world, multi-centre cohort study, we aim to identify ocular and systemic characteristics that correlate with anatomical and functional outcomes for treatment-naive DMO patients treated with intravitreal aflibercept.

View Article and Find Full Text PDF

Introduction: Age-related macular degeneration (AMD) is a common cause of visual impairment, affecting central vision. Geographic atrophy (GA) is an advanced form of the non-neovascular (dry) type of AMD. Late-stage clinical trials suggest that intravitreal injections of novel therapeutics may slow down the rate of GA progression by up to 30% in 1 year, thus allowing people with GA to preserve central vision for a longer period.

View Article and Find Full Text PDF

Purpose: To evaluate the clinical outcomes of patients with treatment-naïve diabetic macula oedema (DMO) treated with Aflibercept in routine clinic settings in ethnically diverse North West London (NWL) and compare to outcomes reported in the VIVID and VISTA clinical trials.

Methods: This was a retrospective multicentre interventional case series. Two hundred and seventy eyes of 221 treatment-naïve patients at three NWL hospitals initiated on Aflibercept and who had at least 12 months follow-up were included in the study.

View Article and Find Full Text PDF

Purpose: A dissociated optic nerve fibre layer (DONFL) is a characteristic change noted in inner retinal morphology after internal limiting membrane (ILM) peeling. It is thought to be due to trauma to Muller cells as the ILM is peeled from their attached end plates. In this study, we aimed to determine the extent and size of Muller cell debris on the retinal side of excised ILM and assess whether this correlated with the extent of DONFL observed postoperatively.

View Article and Find Full Text PDF

Introduction: Fluocinolone acetonide (FAc) intravitreal implant (ILUVIEN(®); Alimera Sciences Limited, Aldershot, UK) has been approved in the UK for the treatment of chronic diabetic macula edema, insufficiently responsive to available therapies. It is inserted into the vitreous cavity through a 25-gauge needle. Migration of the implant to the anterior chamber (AC) can occur through gaps in the posterior capsule especially in vitrectomized eyes.

View Article and Find Full Text PDF

Aims: Analysis of pre-operative spectral domain optical coherence tomography (SD-OCT) characteristics of full-thickness macular holes (FTMH) and effect on optimum management.

Methods: We retrospectively reviewed SD-OCT characteristics of a consecutive cohort of patients waitlisted for FTMH surgery and categorized them by current evidence-based treatments.

Results: Out of the 106 holes analysed, 36 were small, 40 medium and 30 large.

View Article and Find Full Text PDF

Purpose: To describe the intraoperative staining pattern of the internal limiting membrane (ILM)-specific dye Brilliant Blue G (BBG) in a cohort of patients with idiopathic macular holes; to analyze the associations of the staining pattern with pre- and postoperative variables and to correlate the staining pattern with transmission electron microscopy (TEM) of the excised ILM.

Methods: Fifty-five consecutive patients were studied. The staining pattern was divided into three subtypes based on the intraoperative appearance.

View Article and Find Full Text PDF

Purpose: We sought to assess the effect of two different internal limiting membrane [ILM] peeling techniques carried out during surgery for idiopathic macular holes on the postoperative extent of a dissociated optic nerve fibre layer appearance [DONFL].

Methods: We collected prospective data of surgical records, videos, and pre- and postoperative imaging of a consecutive series of patients undergoing surgery for idiopathic macular hole with one of two surgeons. One surgeon used a forceps pinch-peel technique to peel the ILM, whereas the other surgeon used a diamond dusted membrane scraper.

View Article and Find Full Text PDF

Purpose: This study describes a novel subtype of retinal detachment occurring in eyes with pathological myopia associated with type 3 posterior staphyloma and discusses the management options.

Methods: We retrospectively reviewed the case notes of seven patients who presented with unilateral symptomatic rhegmatogenous retinal detachment secondary to nasal juxtapapillary microholes.

Results: All seven patients had pathological myopia and an associated peripapillary type 3 posterior staphyloma.

View Article and Find Full Text PDF