Bilateral keratoglobus in Down's syndrome DOI

Aashna Doshi,

Anujeet Paul,

Dipika Sainath

et al.

Indian Journal of Ophthalmology - Case Reports, Journal Year: 2023, Volume and Issue: 3(4), P. 1191 - 1192

Published: Oct. 1, 2023

Keratoglobus is a rare noninflammatory corneal thinning disorder categorized by progressive diminution of vision resulting from irregular topography and increased fragility due to extreme thinning. It associated with blue sclera, hyperextensibility the joints, or auditory problems. Down's syndrome usually not much visual disturbance. We report an unusual incidence adult male presenting bilateral keratoglobus.

Language: Английский

Systemic Associations with Keratoconus DOI Creative Commons
P. Ambili Unni, Hyunjoo Jean Lee

Life, Journal Year: 2023, Volume and Issue: 13(6), P. 1363 - 1363

Published: June 10, 2023

Keratoconus is a disease of the cornea that results in progressive steepening and thinning subsequent vision loss. It nearly always presents as bilateral disease, suggesting there an underlying abnormality corneas becomes manifest with time. However, mechanisms development keratoconus are largely unknown. Associations reported between systemic diseases abundant literature, list possible associations very long. We found atopy, Down syndrome, various connective tissue were most frequently cited our broad literature search. Additionally, Diabetes Mellitus has been increasingly studied protective factor against keratoconus. In this review, we have summarized evidence for these particular conditions discussed some implications patients having conditions.

Language: Английский

Citations

12

Gene Expression Studies in Down Syndrome: What Do They Tell Us about Disease Phenotypes? DOI Open Access
Laura Chapman, Isabela V. P. Ramnarine,

Dan Zemke

et al.

International Journal of Molecular Sciences, Journal Year: 2024, Volume and Issue: 25(5), P. 2968 - 2968

Published: March 4, 2024

Down syndrome is a well-studied aneuploidy condition in humans, which associated with various disease phenotypes including cardiovascular, neurological, haematological and immunological processes. This review paper aims to discuss the research conducted on gene expression studies during fetal development. A descriptive was conducted, encompassing all papers published PubMed database between September 1960 2022. We found that amniotic fluid, certain genes such as COL6A1 DSCR1 were be affected, resulting phenotypical craniofacial changes. Additionally, other GSTT1, CLIC6, ITGB2, C21orf67, C21orf86 RUNX1 also identified affected fluid. In placenta, dysregulation of like MEST, SNF1LK LOX observed, turn nervous system brain, DYRK1A, DNMT3L, DNMT3B, TBX1, olig2 AQP4 has been shown contribute intellectual disability. cardiac tissues, dysregulated GART, ETS2 ERG cause abnormalities. Furthermore, XIST, RUNX1, SON, STAT1 contributing myeloproliferative disorders. Understanding differential provides insights into genetic consequences DS. better understanding these processes could potentially pave way for development pharmacological therapies.

Language: Английский

Citations

4

Advances in Keratoconus Animal Models: From Genetics to Biomechanics DOI

Zongzheng Zou,

Shanshan Li,

Haixia Zhang

et al.

Experimental Eye Research, Journal Year: 2025, Volume and Issue: unknown, P. 110330 - 110330

Published: March 1, 2025

Language: Английский

Citations

0

Is the Elimination of Keratoconus in Our Hands? DOI

Gabriel Fickett,

Shehzad A. Naroo

Contact Lens and Anterior Eye, Journal Year: 2025, Volume and Issue: unknown, P. 102414 - 102414

Published: April 1, 2025

Language: Английский

Citations

0

Causal Links Between Systemic Disorders and Keratoconus in European Population DOI
Xiaxue Chen, Lanlan Chen

American Journal of Ophthalmology, Journal Year: 2024, Volume and Issue: 265, P. 189 - 199

Published: May 3, 2024

Language: Английский

Citations

3

Self-reported prevalence and risk factors associated with keratoconus among the adult population of Trinidad and Tobago: a cross-sectional study DOI
Ngozika Esther Ezinne, Michael Agyemang Kwarteng, Khathutshelo Percy Mashige

et al.

International Ophthalmology, Journal Year: 2025, Volume and Issue: 45(1)

Published: Jan. 29, 2025

Language: Английский

Citations

0

Hydrops as a Presenting Sign of Keratoconus in Down Syndrome: Case Report, Literature Review, and the Need for a Public Health Strategy DOI Open Access

Ramez Barbara,

Adel Barbara,

Cosimo Mazzotta

et al.

International Journal of Keratoconus and Ectatic Corneal Diseases, Journal Year: 2025, Volume and Issue: 11(1), P. 1 - 4

Published: March 7, 2025

Language: Английский

Citations

0

Identification of Keratoconus-Related Phenotypes in Three Ppip5k2 Mouse Models DOI Creative Commons
Theresa Akoto, Rachel Hadvina,

Skyler Jones

et al.

Investigative Ophthalmology & Visual Science, Journal Year: 2024, Volume and Issue: 65(6), P. 22 - 22

Published: June 13, 2024

Purpose: It is necessary to establish a mouse model of keratoconus (KC) for research and therapy. We aimed determine corneal phenotypes in 3 Ppip5k2 models. Methods: Central thickness (CCT) was determined using spectral domain optical coherence tomography (SD-OCT) Ppip5k2+/K^ (n = 41 eyes), Ppip5k2K^/K^ 17 eyes) 2 knock-in mice, Ppip5k2S419A/+ 54 Ppip5k2S419A/S419A 18 Ppip5k2D843S/+ 42 Ppip5k2D843S/D843S 44 at 6 months. Pachymetry maps were generated the Mouse Corneal Analysis Program (MCAP) process OCT images. Slit lamp biomicroscopy used any abnormalities, and, last, hematoxylin eosin (H&E) staining sections from these animals examine morphological changes. Results: CCT significantly decreased months mice compared their littermate controls. OCT-based pachymetry revealed abnormally localized thinning all three models wild-type (WT) examinations abnormalities form bullous keratopathy, stromal edema, scarring, deep neovascularization, opacities heterozygous/homozygous comparison with histological such as epithelial thickening layer damage, observed WT Conclusions: have identified phenotypic changes corneas lines that could be relevant development animal KC.

Language: Английский

Citations

2

Systemic and ocular associations of Keratoconus DOI Creative Commons
Brenna S. Hefley, Arsalan A. Ali, Pradipta Bhattacharya

et al.

Expert Review of Ophthalmology, Journal Year: 2024, Volume and Issue: 19(5), P. 379 - 391

Published: June 27, 2024

Keratoconus (KC) is the most prevalent corneal ectasia in world and its pathogenesis influenced by both ocular systemic factors. This review explores multifaceted associations between keratoconus health conditions, characteristics, various other environmental/exogenous factors, aiming to illuminate how these relationships influence pathophysiology of disease.

Language: Английский

Citations

2

Enhanced Diagnostics for Corneal Ectatic Diseases: The Whats, the Whys, and the Hows DOI Creative Commons
Louise Pellegrino Gomes Esporcatte, Marcella Q. Salomão, Alexandre Batista da Costa Neto

et al.

Diagnostics, Journal Year: 2022, Volume and Issue: 12(12), P. 3027 - 3027

Published: Dec. 2, 2022

There are different fundamental diagnostic strategies for patients with ectatic corneal diseases (ECDs): screening, confirmation of the diagnosis, classification type ECD, severity staging, prognostic assessment, and clinical follow-up. The conscious application such enables individualized treatments. need improved diagnostics ECD is related to advent therapeutic refractive procedures that considered prior keratoplasty. Among less invasive procedures, we include crosslinking, customized ablations, intracorneal ring segment implantation. Besides paradigm shift in managing enhancing sensitivity detect very mild forms disease, characterizing inherent susceptibility ectasia progression, became relevant identifying at higher risk progressive iatrogenic after laser vision correction (LVC). Moreover, hypothesis keratoconus a factor delivering baby Down's syndrome potentially augments relevance ECD. Multimodal imaging involves technologies, including Placido-disk topography, Scheimpflug 3-D tomography, segmental or layered tomography epithelial thickness using OCT (optical coherence tomography), digital high-frequency ultrasound (VHF-US), ocular wavefront. Corneal biomechanical assessments genetic molecular biology tests have translated measurements. Artificial intelligence allows integration plethora data has proven its facilitating decisions, allowing personalized

Language: Английский

Citations

9