Impact of Defocus Incorporated Multiple Segments Spectacles Versus Single Vision Spectacles on Myopia Control and Astigmatic Changes in Adolescents

Key Points

• Investigate the effects of DIMS versus single vision spectacles on myopia and astigmatism in adolescents.
• Compared DIMS lenses to single vision spectacles in adolescents with myopia.
• Measured changes in spherical equivalent and axial elongation.
• Assessed horizontal/vertical and oblique astigmatism over time.
• DIMS lenses significantly slowed the progression of myopia.
• DIMS wear reduced horizontal and vertical astigmatism components.
• Long-term use of DIMS lenses may increase oblique and corneal astigmatism.