The efficacy of low vision aids with contact lenses in pediatric population
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ORIGINAL PAPER
The efficacy of low vision aids with contact lenses in pediatric population Ferah Ozcelik . Gamze Ozturk Karabulut . Osman Bulut Ocak
Received: 22 July 2019 / Accepted: 23 May 2020 Ó Springer Nature B.V. 2020
Abstract Purpose To compare the efficacy of contact lens use with low vision aids (LVA) with the efficacy of spectacle use with low vision aids. Methods Thirty-six pediatric patients with low vision were enrolled in this study between January 2015 and March 2017. The patients were examined for best-corrected visual acuity (BCVA) with spectacles, spectacles with LVA, contact lenses and contact lenses with LVA. Toleration of the patients with contact lenses and LVA were recorded at the final follow-up exam. Results The mean BCVA with spectacles was detected as 1.11 ± 0.25 log MAR and the mean BCVA improved to 0.35 ± 0.13 log MAR with the use of spectacles and LVA, which was statistically significant. The mean BCVA with contact lens, which was 0.99 ± 0.22 log MAR, improved to 0.40 ± 0.21 log MAR with contact lens and LVA, which was also significant. There was a statistically significant improvement in BCVA of the patients with contact lenses only when compared to spectacles only. The mean BCVA significantly improved in patients using
F. Ozcelik G. Ozturk Karabulut O. B. Ocak Istanbul Beyoglu Eye Research and Training Hospital, Galata, 34421 Istanbul, Turkey O. B. Ocak (&) Istanbul, Turkey e-mail: [email protected]
LVA with contact lenses when compared to LVA with spectacles. Tolerations of the patients with contact lenses and LVA were found to be well at 29 of 36 (80.55%) at final follow-up (26.11 ± 6.85 months). Conclusion Contact lens use in pediatric patients with low vision especially with LVA offers better visual acuity, a decrease in nystagmus amplitude, wider field of view and comfort. Keywords Contact lenses Low vision Contact lenses in children Low vision aids
Introduction During the emmetropization process, which occurs up to 6–7 years of age, many ocular pathologies can impair visual function, which in turn may interfere with overall functionality in children including motor and cognitive skills, and social relationships. Visual rehabilitation, therefore, helps children to achieve a useful vision and improve their quality of life [1]. The legal definition of low vision, as described by World Health Organization, is the ‘‘impairment of visual functioning, even after treatment and/or correction of common refractive errors, and has a visual acuity of \ 20/60 (6/18, 0.3) to perceived light or a visual field of\ 10 degrees from its fixation point but
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uses or is potentially capable of using vision for planning and performing task [2, 3]. It has been estimated that 90% of individuals with low vision have residual functional vision and could benefit from low vision aids (LVA) [4]. Reduced visual function results in developmental delay, including decreased perception of form and contour, inability to perform f
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