View clinical trials related to Myopia.
Filter by:LASIK is the most commonly performed refractive surgery worldwide. It has been shown to be safe and effective procedure with predictable results over long term follow ups. With the advancement of technology, sub-Bowman keratomileusis allows thin flap of approximately 100 microns thickness thus preserving thicker stromal bed as compared to conventional LASIK. The femtosecond laser corneal flap has th advantage of producing a flap of uniform thickness, adjustable flap diameter, relatively few complications. The disadvantages of this procedure is the high cost of surgery, development of bubbles in the corneal layer and anterior chamber which may affect pupil trackingduring the procedure. Despite the emergence of femtosecond laser-assisted flap creation, mechanical microkeratomes remain the preferred choice in the majority of developing countries. Recent studies have shown that SBK corneal flap has the same advantages as femtosecond laser flap regarding flap uniformity, regularity, and accuracy with less suction time and cost, but with its specific complications as well.
To investigate the surgical outcomes and intraoperative parameters evaluation of 3D visualization system for vitreoretinal diseases in highly myopic eyes
To explore the potential factors for unintended initial dissection of the posterior plane in a large sample retrospective analysis and surgeons of different levels.
Orthokeratology lens is an effective method for myopia control. This study analyzed the effects of treatment zone decentration on axial length elongation in adolescents with orthokeratology lens.
Orthokeratology lens is an effective method for myopia control. This study analyzed the relationship between the relative corneal refractive power shift and change of axial length in adolescents with orthokeratology lens.
To evaluate the performance of two monthly replacement silicone hydrogel contact lenses in habitual FRP CL wearers when worn for 1-month.
Experienced soft contact lens wearing subjects will be enrolled in this 1-week, confirmatory, randomized, bilateral, 2-way crossover, double masked (subject and investigator), repeated measures, dispensing study. All subjects will be seen for a Screening/Baseline Visit at which informed consent will be obtained and eligibility will be assessed.
This study is to compare the short-term clinical performance and subjective acceptance of two silicone hydrogel soft contact lenses.
This study will evaluate changes in visual performance at different pupil sizes between a single vision soft contact lens and multifocal soft contact lens, and compare refractive error measured between these two lenses with an autorefractor and an aberrometer
To determine the longitudinal changes of age and refraction in predicting myopia progression with risk under the coronavirus disease 2019 (COVID-19) pandemic in a 3-year follow-up of a Chinese cohort.