ABSTRACT Objective: To identify corneal epithelial thickness profiles for early keratoconus diagnosis with the aid of Artificial Intelligence. Methods: A total of 496 eyes (306 normal and 190 with keratoconus) were analyzed using optical coherence tomography images. Results: Epithelial segmentation revealed distinct patterns between groups, highlighting early changes in epithelial thickness in keratoconus eyes. The findings reinforce the potential of artificial intelligence in disease screening, enabling a more precise and objective diagnostic approach. Conclusion: Implementing algorithms such as k-means can […]

ABSTRACT Objective: To characterize structural optic nerve changes in Ecuadorian glaucoma patients using optical coherence tomography data from 2015 to 2022. Methods: This retrospective study analyzed anonymized optical coherence tomography data from 301 eyes of 162 patients diagnosed with primary open-angle glaucoma. Data were acquired using the Nidek RS-330 and analyzed with Statistical Package for the Social Sciences, version 21. We assessed peripapillary retinal nerve fiber layer thickness (global, quadrants, and clock-hour sectors) and cup-to-disc ratios. Results: The mean global […]

ABSTRACT Objective: To evaluate the tomography accuracy of Cirrus 5000 optical controls in patients with or without keratoconus for pachymetry measurements by image scanning patterns. Methods: A prospective, cross-sectional and mixed study was performed in 20 eyes, where 37 parameters of each sample was analyzed and repeated 5 times. Results: Only four samples (vertex full, maximum epithelial pachymetry at 5 to 7.0mm, maximum epithelial pachymetry at 7 to 9.0mm and epithelial pachymetry difference between minimum and average) samples showed a […]

Anterior segment-optical coherence tomography (AS-OCT) imaging provide a range of characteristic patterns that could be used as an additional tool in the diagnosis and management of infectious keratitis.(,) We describe the AS-OCT findings of a patient with fungal keratitis. A 65-year-old man with a history of vegetal trauma to his left eye, presented to the emergency room complaining of pain and blurred vision in the right for three weeks. The best corrected visual acuity was 3/10 in the left eye. […]

ABSTRACT The pachychoroid disease spectrum (PDS) encompasses a range of chorioretinal disorders characterized by increased choroidal thickness, dilated Haller’s layer vessels (pachyvessels), and choroidal hyperpermeability, often associated with retinal pigment epithelium (RPE) alterations. This review synthesizes current evidence on pachychoroid pigment epitheliopathy (PPE), central serous chorioretinopathy (CSC), pachychoroid neovasculopathy (PNV), and polypoidal choroidal vasculopathy (PCV), emphasizing their shared pathophysiological mechanisms, multimodal imaging features, and clinical implications. Enhanced depth imaging optical coherence tomography (EDI-OCT) and widefield indocyanine green angiography (ICGA) have […]

ABSTRACT Optical coherence tomography is an imaging technique widely used in the diagnosis and monitoring of patients with age-related macular degeneration, being crucial for differentiating between the dry and exudative forms of the disease. The recognition and interpretation of various age-related macular degeneration biomarkers in optical coherence tomography play a key role in identifying signs of activity, chronicity, disease progression, and, most importantly, in monitoring the response to treatment and prognosis. Understanding the biomarkers enables the ophthalmologist to optimize their […]

ABSTRACT This article is aimed at documenting a case of Bergmeister papilla that was an incidental finding that had its conclusive diagnosis given by the optical coherence tomography (OCT) of the optic nerve and retinography. We report the case of a female patient who came to our service for a routine appointment claiming visual difficulty seeing from a distance in both eyes. After the appointment and the request of the diagnostic tests, Bergmeister Papilla was found in the right eye, […]

ABSTRACT Congenital stationary night blindness encompasses a heterogeneous group of inherited retinal dystrophies characterized by impaired scotopic vision from birth. This article provides a comprehensive overview of congenital stationary night blindness, focusing on its genetic underpinnings, clinical manifestations, and diagnostic approaches, with a specific emphasis on variants in the CACNA1F gene. Through a detailed case report of a 49-year-old male with congenital stationary night blindness attributed to a hemizygous variant in CACNA1F, we illustrate typical clinical presentations and correlate them […]