Peripheral Refraction and Visual Function of Novel Perifocal Ophthalmic Lens for the Control of Myopia Progression

Silva-Leite, Sara; Amorim‐de‐Sousa, Ana; Queirós, António; González-Meijóme, José Manuel; Fernandes, Paulo

doi:10.3390/jcm12041435

Cited by 4 publications

(2 citation statements)

References 25 publications

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“…A wearer trial showed efficiency results similar to those for the defocus-incorporated multiple segments (DIMS) lens 44,45 (see the next section), with data available for 4 to 5 years since the start of wear 44 . As would be expected, the lens is successful in reducing peripheral relative hyperopia along the horizontal visual field 21,66,67 …”

Section: Progressive Addition Lenses Developed For Myopia Treatmentmentioning

confidence: 73%

“…44 As would be expected, the lens is successful in reducing peripheral relative hyperopia along the horizontal visual field. 21,66,67 The Apollo lens is mentioned by Li et al 46 The full addition power of 2.50 D occurs superiorly, with 80 and 60% of this achieved nasally and temporally, respectively.…”

Section: Progressive Addition Lenses Developed For Myopia Treatmentmentioning

confidence: 99%

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Optics of spectacle lenses intended to treat myopia progression

Atchison,

Charman

2024

Optom Vis Sci

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SIGNIFICANCE This is a review of the optics of various spectacle lenses that have been used in myopia control over the last 60 years, with emphasis on approximately the last 15 years. Myopia has become an increasing health problem worldwide, particularly in some East Asian countries. This has led to many attempts to slow its progression in children and reduce its endpoint value. This review is concerned with the optics of spectacle lenses for use in myopia control, from bifocal lenses to multisegment and diffusion optics lenses. Treatments are based on theories of the onset or progression of myopia. These include the hypotheses that eye growth and myopia in susceptible children may be stimulated by (1) poor accommodation response and the consequent hyperopic defocus with near vision tasks, (2) relative hyperopic peripheral refraction, and (3) high retinal image contrast as occurs in urban environments. Using spectacle lenses to slow myopia progression has a history of about 60 years. The review is laid out in approximately the order in which different types of lenses have been introduced: bifocals, conventional progressive addition lenses, undercorrection with single-vision lenses, specialized progressive addition lenses, defocus-incorporated multiple segments, diffusion optics, and concentric bifocals. In the review, some of the lenses are combined with an eye model to determine refractive errors for peripheral vision for the stationary eye and for foveal vision for the rotating eye. Numbers are provided for the reported success of particular designs in retarding myopia progression, but this is not an epidemiological paper, and there is no critical review of the findings. Some of the recent treatments, such as multiple segments, appear to reduce the eye growth and myopia progression by better than 50% over periods of up to 2 years.

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Section: Progressive Addition Lenses Developed For Myopia Treatmentmentioning

confidence: 73%

Section: Progressive Addition Lenses Developed For Myopia Treatmentmentioning

confidence: 99%

Optics of spectacle lenses intended to treat myopia progression

Atchison,

Charman

2024

Optom Vis Sci

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Multifocal Optics for Myopia Control

Schmucker,

Lagrèze

2024

Klin Monbl Augenheilkd

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The rising prevalence of myopia among children and adolescents necessitates effective interventions to mitigate long-term risks, such as retinal detachment and macular degeneration. Traditional approaches like undercorrection with single-vision lenses have proven ineffective. Recent research underscores the significance of peripheral vision in managing myopia progression. While hyperopic defocus in the peripheral retina may encourage axial elongation, multifocal lenses designed to induce peripheral myopic defocus can potentially curb this elongation. Randomized controlled trials (RCTs) have demonstrated that spectacle lenses with peripheral modifications, such as highly aspherical lenslets (HAL) or defocus incorporated multiple segments (DIMS), reduce myopia progression and axial elongation over 2 years. Similarly, multifocal contact lenses, especially those with high-add power (+ 2.50 D), have shown comparable reductions over 3 years. Safety is a critical consideration in myopia control. Multifocal spectacle lenses with peripheral plus designs are generally well tolerated, with only transient side effects, like dizziness and blurred vision. Soft multifocal contact lenses also exhibit a favorable safety profile, with low rates of serious adverse events. Thorough monitoring and reporting in these studies are essential to provide assurance about the safety of these interventions for children. Future research should aim to include more diverse populations in order to ensure the generalizability of findings across various demographic groups. Additionally, real-world data would offer valuable insights into the performance of these treatments in everyday scenarios. Observational studies, less influenced by industry sponsorship, could further validate these findings. Lastly, the clinical significance of the observed effects should be critically assessed to confirm that the reported benefits lead to meaningful reductions in myopia progression.

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New Designs of Spectacle Lenses for the Control of Myopia Progression: A Scoping Review

Lupon,

Nolla,

Cardona

2024

JCM

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Myopia control with new designs of spectacle lenses is a flourishing area of research. The present work reviews the effectiveness of new designs (DIMSs, defocus-incorporated multiple segments; CARE, cylindrical annular refractive element; HALs/SALs, highly/slightly aspherical lenslets; DOT, diffusion optics technology) aiming at slowing myopia progression. A search through the PubMed database was conducted for articles published between 1 January 2003 and 28 February 2023. Publications were included if they documented baseline central refraction (SER) and/or axial length (AL) data, and the change in these parameters, in myopic children wearing new designs of spectacle lenses (treatment group) compared to myopic children using single-vision lenses, SVLs (control group). The selection process revealed nine suitable articles. Comparing the mean and standard error values of the treatment and control groups, the highest differences in the change in the SER and AL were −0.80 (1.23) D [95% CI: −1.053 to −0.547; p < 0.001] and 0.35 (0.05) mm [95% CI: 0.252 to 0.448; p < 0.001], respectively; the effect of treatment provided by a HAL design, compared to SVLs, led to a deceleration of 54.8% in the SER and 50.7% in the AL. However, the heterogeneity of the results prevents reaching strong conclusions about the effectiveness of these new designs.

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Peripheral Refraction and Visual Function of Novel Perifocal Ophthalmic Lens for the Control of Myopia Progression

Cited by 4 publications

References 25 publications

Optics of spectacle lenses intended to treat myopia progression

Optics of spectacle lenses intended to treat myopia progression

Multifocal Optics for Myopia Control

New Designs of Spectacle Lenses for the Control of Myopia Progression: A Scoping Review

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