View clinical trials related to Myopia.
Filter by:The aim of this non-dispensing fitting study is to evaluate the subjective comfort, lens handling, lens fitting characteristics and visual acuity of different hydrogel lens designs versus silicone hydrogel lenses
Myopia is the leading cause of blindness in Taiwan. The younger children with myopia, the higher risk of high myopia in later life and complications such as retinal detachment and maculopathy will occur. We have reported the low concentration of atropine (0.05%) with the effect on retarding the myopia progression. Recently the 0.01% atropine was also reported effective and with less visual side effects such as mydriasis. The aim of this study is to compare the efficacy in controlling myopia progression and visual side effects of 2 low concentration of atropine(0.05% vs 0.01%) in children aged 6-12 years with myopia of at least -0.5 diopters (D) and astigmatism of -1.50 D or less.
The purpose of this study is to evaluate lens centration and subjective impressions of DAILIES® AquaComfort Plus® (DACP) lenses compared to 1-DAY ACUVUE® MOIST® (1DAM) lenses in ball sports players.
The purpose of this study was to evaluate the axis location of toric contact lenses after 3 minutes of wear. During this 1-visit study, each participant wore 3 pairs of study lenses of various design iterations (2-87-1, 2-87-2, 2-87-3) for an exposure time of approximately 30 minutes each. Each pair consisted of lenses of the same design iteration, 1 lens with embossed mark [TEST1 (T1), TEST3 (T3), TEST5 (T5)], worn on the right eye, and 1 lens without embossed mark [TEST2 (T2), TEST4 (T4), and TEST6 (T6)] worn on the left eye.
The objective of the study is to compare the overall subjective preference of filcon II 3 daily disposable silicone hyrogel contact lenses compared to etafilcon A and nelfilcon A daily disposable conventional hydrogel contact lenses.
The objective of the study is to compare the overall subjective preference between two Daily Disposable hydrogel lenses when refitted into a third hydrogel lens.
The purpose of the study is to compare the results of PRKK surgery when using wavefront-guided excimer laser treatment compared to wavefront optimized excimer laser treatment in patients with nearsightedness with and without astigmatism
The purpose of this study is making use of school policy- recess outside classroom (ROC7-11) for increasing the time spent outdoor during recess and encouraging children spent time outdoor up to 11 hours in each week to investigate the vision change, myopia onset and progression in these schoolchildren.
The purpose of this study is to compare the change from baseline in central corneal curvature at one week, between 2 silicone hydrogel lenses, in higher myopic subjects.
Myopia is widely one of the three commonly detected refractive errors. Myopia is usually managed by correction through glasses or contact lenses. Other alternative available include surgery, drugs and acupuncture. There are various therapeutic approaches and different points can be used in acupuncture treatment for myopia, such as auricular acupuncture, acupressure body acupuncture. However, the mechanism of acupuncture therapy for myopia is largely unknown. Furthermore, little information exists regarding the effects and safety of acupuncture for degenerative myopia in children. The investigators aimed to assess the overall effectiveness, safety of periocular acupressure for children with myopia The hypotheses of this study are as follows: Periocular acupressure is effective for myopia progression delay. The study aims to include 56 participants.