Evaluation of corneal tomography in children and adolescents without ocular or systemic allergy

• Autor(a) principal: Moraes Neto,Roddie
• Data de Publicação: 2022
• Outros Autores: Bordignon,Gabriel, Flügel,Nayara Teixeira, Okuyama,Vinícius Tadashi, Rosário,Cristine Secco, Serpe,Crislaine Caroline, Rosário Filho,Nelson Augusto, Chong Neto,Herberto José, Mello,Glauco Henrique Reggiani
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Arquivos brasileiros de oftalmologia (Online)
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0004-27492022005008201
• topic: Cornea; Corneal topography; Astigmatism; Conjunctivitis; allergic; Tomography; Keratoconus/diagnosis; Humans; Child; Adolescent

ABSTRACT Purpose: To determine normal corneal tomographic parameters in children and adolescents without corneal disease or atopy diagnosis. Methods: This descriptive cross-sectional study evaluated patients aged 8-16 years who underwent a complete slit-lamp biomicroscopic examination and tomographic corneal evaluation by a dual Scheimpflug analyzer, excluding those with ocular disease (including allergic conjunctivitis) or a positive prick test for systemic atopies. Results: A total of 170 patients were evaluated, and 34 patients (68 eyes) were analyzed once the exclusion criteria were applied. The sample’s mean age was 10.76 ± 2.31 years; with 19 (55.9%) men and 15 (44.1%) women. The mean keratometry in the flat meridian (Kflat), steep meridian (Ksteep), and maximum (Kmax) were 42.37 ± 1.63D, 43.53 ± 1.65D, and 43.90 ± 1.73D, respectively. The mean values for corneal asphericity (ε2) and thinnest point were 0.28 ± 0.11 and 550.20 ± 37.90 μm, respectively. The inferior-superior asymmetry ratio (I-S) and coma were 0.74 ±0.59D and 0.28 ± 0.12D, respectively. Conclusion: The knowledge of normal corneal tomographic parameters and their variation in children and adolescents without corneal disease or atopy may be useful for diagnosing keratoconus and initiating early disease treatment.