Purpose: To establish the literature basis that could support the idea that it would be possible to analyze changes at the anterior surface of the cornea induced by an air jet applied onto the eye.
Methods: The PUBMED/MEDLINE literature basis regarding the following subjects was searched: videokeratography, high-speed photography, ocular response analyzer (ORA). The information concerning the goal of this paper was selected.
Results: The literature showed data that support the idea of gathering 3 nowadays available technologies that could result in a new concept of 'dynamic corneal topography': the corneal topography, the air jet applied to histeresis measurement by the Ocular Response Analyzer and the high-speed photography technique used to study the tear film and the anterior surface of the cornea.
Conclusion: The literature basis supports the idea of gathering the existent technologies of corneal topography, the air jet of the corneal histeresis device and the high-speed photography to create a new concept in the analysis of the corneal surface: the dynamic corneal topography.
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http://dx.doi.org/10.1590/s0004-27492009000200028 | DOI Listing |
Eye Vis (Lond)
January 2025
Contact Lens and Visual Optics Laboratory, Optometry and Vision Science, Centre for Vision and Eye Research, Queensland University of Technology, Brisbane, Australia.
Purpose: To explore the associations between myopia defocus dosage (MDD), aberration coefficients (primary spherical aberration and coma), and axial elongation in children undergoing orthokeratology (ortho-k) with back optic zone diameters (BOZD) of 5 mm and 6 mm over 2 years.
Methods: Data from 80 participants from two ortho-k studies were analyzed: 22 and 58 children wore lenses with 5-mm and 6-mm BOZD, respectively. Four MDD metrics were calculated from corneal topography data over a 5-mm pupil for the 1-month and 24-month visits: the circumferential, flat, steep, and volumetric MDD.
Int Med Case Rep J
December 2024
Department of Ophthalmology, Mater Dei Hospital, Imsida, MSD, 2090, Malta.
Purpose: We present a case of levetiracetam-induced corneal edema. To the best of our knowledge, this is the first documented case of bilateral reversible corneal edema secondary to levetiracetam use.
Patients And Methods: A 59-year-old woman was referred to the ophthalmology department with a few weeks' history of bilateral blurring of vision.
Vestn Oftalmol
December 2024
Krasnov Research Institute of Eye Diseases, Moscow, Russia.
Preparation for cataract surgery in patients with keratoconus (KC) is associated with particular challenges: calculating the optical power of the intraocular lens (IOL), selecting the appropriate IOL model, and considering additional interventions aimed at stabilizing KC and reducing irregular astigmatism. This article presents a fundamentally new approach to combined treatment of KC with cataract, consisting of two stages: first, performing bandage therapeutic-optical keratoplasty (BTOK), followed by cataract phacoemulsification as the second stage.
View Article and Find Full Text PDFIndian J Ophthalmol
January 2025
Department of Ophthalmology, Université Paris Cité, Cochin Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France.
Purpose: This study aims to evaluate the efficacy of various tomographic indices, both established and novel, in predicting endothelial decompensation leading to either spontaneous corneal transplantation or transplantation following cataract surgery in patients with Fuchs endothelial corneal dystrophy (FECD).
Methods: In this cross-sectional, retrospective study, we reviewed the files of 93 eyes from 54 FECD patients undergoing regular follow-up. We recorded clinical metrics such as morning visual disturbance (MVD) and corrected distance visual acuity.
Clin Pediatr (Phila)
December 2024
Department of Child and Adolescent Psychiatry, Recep Tayyip Erdogan University, Rize Training and Research Hospital, Merkez/Rize, Turkey.
Purpose: To determine the ocular structural changes in obsessive-compulsive disorder (OCD) children with eye-rubbing compulsion.
Methods: Participants recruited at the child and adolescent psychiatry clinic were evaluated for the OCD diagnosis. All patients underwent imaging with Scheimpflug corneal topography (Sirius, CSO, Italy), Tomey EM-4000 specular microscopy (Nagoya, Japan), and Lenstar LS 900 (Haag-Streit AG, Switzerland) optical biometry.
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