Long-term results of perifocal defocus spectacle lens correction in children with progressive myopia

Тарутта, Е. П.; Проскурина, О. В.; Na, Tarasova; Milash, S. V.; Markosyan, G. A.

doi:10.17116/oftalma201913505146

Cited by 19 publications

(20 citation statements)

References 18 publications

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“…In the 15° zone, 100% of the eyes formed myopic defocus, which averaged −0.05 ± 0.1 D in temporal 15°, −0.25 ± 0.16 D in nasal 15°, and −0.44 ± 0.03 D in temporal 30°. In the nasal 30° zone, the hyperopic defocus decreased by four times and amounted to 0.38 ± 0.03 D. The rate of myopia progression decreased from 0.80 D of baseline values to 0.17 D at 4 to 5 years of follow-up [ 53 ].…”

Section: Optical Devices That Provide Peripheral Defocus and Their Ef...mentioning

confidence: 99%

Peripheral Defocus and Myopia Management: A Mini-Review

Erdinest

London

Lavy

et al. 2023

Korean J Ophthalmol

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Myopia is the most common refractive error in the world, and its’ prevalence continually increases. The potential pathological and visual complications of progressive myopia have inspired researchers to study the sources of myopia, axial elongation, and explore modalities to arrest progression. Considerable attention has been given over the past few years to the myopia risk factor known as hyperopic peripheral blur, the focus of this review. The primary theories currently believed to be the cause of myopia, the parameters considered to contribute and influence the effect of peripheral blur, such as the surface retinal area or depth of blur will be discussed. The currently available optical devices designed to provide peripheral myopic defocus will be discussed, including bifocal and progressive addition ophthalmic lenses, peripheral defocus single vision ophthalmic lenses, orthokeratology lenses, and bifocal or multifocal center distance soft lenses, as well as their effectivity as mentioned in the literature to date.

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Section: Optical Devices That Provide Peripheral Defocus and Their Ef...mentioning

confidence: 99%

Peripheral Defocus and Myopia Management: A Mini-Review

Erdinest

London

Lavy

et al. 2023

Korean J Ophthalmol

View full text Add to dashboard Cite

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“…Tarutta et al (2019) described the long-term results of these perifocal defocus spectacle lenses in children between 7–14 years old with progressive myopia [ 13 ]. They studied the effect of these lenses on peripheral refraction at 15° and 30° in the nasal and temporal retina and showed a more negative peripheral refraction with perifocal lenses than the control for both nasal and temporal retina, even though in the 30° N the refraction was still positive [ 13 ]. These results are similar to the results obtained in the present study.…”

Section: Discussionmentioning

confidence: 99%

“…The effectiveness of this lens was reported in a Russian-based study where the test group was 0.79 D less myopic than a control group after four years of follow-up. They found that the peripheral refraction was more myopic at the 15° nasal as well as 15° and 30° temporal zone [ 13 ]. Nevertheless, the actual effect of this lens on peripheral refraction and the potential impact on visual quality is not known.…”

Section: Introductionmentioning

confidence: 99%

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

Silva-Leite

Amorim‐de‐Sousa

Queirós

et al. 2023

JCM

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This study aimed to evaluate the peripheral defocus induced with a novel perifocal ophthalmic lens for myopia progression control and the potential impact on visual function. This experimental, non-dispensing crossover study evaluated 17 myopic young adults. The peripheral refraction was measured using an open-field autorefractor, at 2.50 m from the target point, in two eccentric points, 25° temporal, 25° nasal, and central vision. Visual contrast sensitivity (VCS) was measured at 3.00 m with a Vistech system VCTS 6500 in low light conditions. Light disturbance (LD) was assessed with a light distortion analyzer 2.00 m away from the device. Peripheral refraction, VCS, and LD were assessed with a monofocal lens and perifocal lens (with an add power of +2.50 D on the temporal side of the lens, and +2.00 D on the nasal side). The results showed that the perifocal lenses induced an average myopic defocus of −0.42 ± 0.38 D (p-value < 0.001) in the nasal retina, at 25° The changes induced by the lower add power in the nasal part of the lens did not induce statistically significant changes in the refraction of the temporal retina. The VCS and LD showed no significant differences between the monofocal and perifocal lenses.

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“…The rate of progression of myopia decreased from 0.80D of baseline values to 0.17D at 4–5 years of follow-up. [ 47 ]…”

Section: Peripheral Defocus Ophthalmic Lensesmentioning

confidence: 99%

Peripheral defocus as it relates to myopia progression: A mini-review

London¹,

Erdinest²,

Lavy³

et al. 2023

Taiwan J Ophthalmol

View full text Add to dashboard Cite

Myopia is the most common refractive error in the world and has reached a pandemic level. The potential complications of progressive myopia have inspired researchers to attempt to understand the sources of myopia and axial elongation and to develop modalities to arrest progression. Considerable attention has been given over the past few years to the myopia risk factor known as hyperopic peripheral blur, which is the focus of this review. It will discuss the primary theories believed to be the cause of myopia and the parameters considered to contribute to and influence the effect of peripheral blur, such as the surface retinal area of blur or the depth of blur. The multitude of optical devices designed to provide peripheral myopic defocus will be mentioned, including bifocal and progressive addition ophthalmic lenses, peripheral defocus single-vision ophthalmic lenses, orthokeratology lenses, and bifocal or multifocal center distance soft lenses, as well as their effectivity as discussed in the literature to date.

show abstract

Long-term results of perifocal defocus spectacle lens correction in children with progressive myopia

Cited by 19 publications

References 18 publications

Peripheral Defocus and Myopia Management: A Mini-Review

Peripheral Defocus and Myopia Management: A Mini-Review

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

Peripheral defocus as it relates to myopia progression: A mini-review

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