The effects of entrance pupil centration and coma aberrations on myopic progression following orthokeratology
| Autor: | Bernard Gilmartin, Jacinto Santodomingo-Rubido, Ramón Gutiérrez-Ortega, Asaki Suzaki, César Villa-Collar |
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| Rok vydání: | 2015 |
| Předmět: |
Male
medicine.medical_specialty genetic structures Contact Lenses medicine.medical_treatment Coma (optics) Astigmatism Refraction Ocular Pupil Cornea Entrance pupil Miopía progresiva Ophthalmology Myopia Optometría medicine Humans Corneal reflex Child Visión - Trastornos Óptica Vista Ortoqueratología Blinking medicine.diagnostic_test business.industry Orthokeratology Corneal Topography Corneal topography medicine.disease eye diseases Axial Length Eye medicine.anatomical_structure Disease Progression Optometry Female sense organs business Orthokeratologic Procedures Follow-Up Studies |
| Zdroj: | ABACUS. Repositorio de Producción Científica Universidad Europea (UEM) |
| ISSN: | 1444-0938 0816-4622 |
| Popis: | The aim was to assess the potential association between entrance pupil location relative to the coaxially sighted corneal light reflex (CSCLR) and the progression of myopia in children fitted with orthokeratology (OK) contact lenses. Additionally, whether coma aberration induced by decentration of the entrance pupil centre relative to the CSCLR, as well as following OK treatment, is correlated with the progression of myopia, was also investigated.Twenty-nine subjects aged six to 12 years and with myopia of -0.75 to -4.00 DS and astigmatism up to 1.00 DC were fitted with OK contact lenses. Measurements of axial length and corneal topography were taken at six-month intervals over a two-year period. Additionally, baseline and three-month topographic outputs were taken as representative of the pre- and post-orthokeratology treatment status. Pupil centration relative to the CSCLR and magnitude of associated corneal coma were derived from corneal topographic data at baseline and after three months of lens wear.The centre of the entrance pupil was located superio-temporally to the CSCLR both pre- (0.09 ± 0.14 and -0.10 ± 0.15 mm, respectively) and post-orthokeratology (0.12 ± 0.18 and -0.09 ± 0.15 mm, respectively) (p > 0.05). Entrance pupil location pre- and post-orthokeratology lens wear was not significantly associated with the two-year change in axial length (p > 0.05). Significantly greater coma was found at the entrance pupil centre compared with CSCLR both pre- and post-orthokeratology lens wear (both p 0.05).Entrance pupil location relative to the CSCLR was not significantly affected by either OK lens wear or an increase in axial length. Greater magnitude coma aberrations found at the entrance pupil centre in comparison to the CSCLR might be attributed to centration of orthokeratological treatments at the CSCLR. 1.280 JCR (2015) Q3, 39/56 Ophthalmology UEM |
| Databáze: | OpenAIRE |
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