View clinical trials related to Myopia.
Filter by:Vision and comfort, both objective and subjective, will be assessed for single vision contact lens wearers for either the APIOC™ for Presbyopia or the APIOC™ for Presbyopia Astigmatism contact lenses.
The purpose is to assess the effect of part-time compared to full-time spectacle use in juvenile myopia control.
To explore the effectiveness of using low-intensity single-wavelength red light to prevent myopia in schoolchildren, and to provide a feasible scheme for reducing the incidence of myopia.
This study is aimed at examining the BCVA from try-on glasses constructed from measurements from the EyeQue VisionCheck.
This study will examine the accommodative behavior in children undergoing myopia control treatments. A subset of children showing reduced accommodation, known to occur in while wearing multifocal soft contact lenses (MFCL) from previous studies, will undergo auditory biofeedback training to improve the accommodative response and possibly improve treatment efficacy. The results of this study will be used to design a larger clinical trial. Aim 1 - The accommodation response in myopic children being treated with MFCL for six months or longer, will be determined. The accommodative response data will be collected while the patients are wearing the MFCL and will be compared to the baseline control response when the subjects wear single vision soft contact lenses (SVCL). Additional comparisons will include accommodative measures in untreated myopic children wearing spectacle corrections (unttreated controls), children being treated with ortho-keratology contact lenses, and children treated with low-dose atropine (0.01%, considered not to affect accommodation). How these additional myopia treatments affect the accommodation response has yet to be determined. Aim 2 - Children treated with MFCL who show reduced accommodative responses will undergo a brief period of auditory biofeedback accommodative training to determine whether the response in children can be improved and how long it can be sustained. Improving the accommodative response in these patients may improve the treatment efficacy by increasing the effect of the positive power addition built into the lenses.
Vision and comfort, both objective and subjective, will be assessed for single vision contact lens wearers for either the APIOC™ Sphere or the APIOC™ Astigmatism contact lenses.
The purpose of this prospective study is to assess the efficacy, safety and patient-reported outcomes of the Menicon Z Night orthokeratolgy contact lens for reducing myopia progression in children.
To compare axial length growth of white European myopic children wearing Menicon Z Night orthokeratology contact lenses to a control group of distance, single-vision glasses and contact lenses over an 11-year period.
To assess the long-term efficacy of the Menicon Z Night orthokeratology contact lens in controlling the progression of childhood myopia
The purpose of this study is to report the changes in accommodation, aberrations, and myopia in patients wearing multifocal soft contact lens for various durations. The study objectives are to: 1. Determine the effects of wearing multifocal soft contact lens on accommodation and aberrations over a 12-month period. 2. Determine the effect of wearing multifocal soft contact lens on myopia over a 12-month period.