Light disturbance analysis in the controlled randomized clinical trial MiSight® Assessment Study Spain (MASS)

Ruiz-Pomeda, Alicia; Fernandes, Paulo; Amorim‐de‐Sousa, Ana; González-Meijóme, José Manuel; Garrido, F. Prieto; Pérez-Sánchez, Belén; Villa-Collar, César

doi:10.1016/j.clae.2018.11.006

Cited by 20 publications

(36 citation statements)

References 22 publications

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“…This instrument reliably quantifies a subjective component of vision other than VA. 1,7 The LDA has been validated previously and used to assess light disturbance phenomena under dim-light conditions in eyes fitted with different optical devices. 1,2,8,19 In brief, the system consists of a central 5 mm white lightemitting diode (LED) surrounded by 240 small, white 1mm LEDs divided into 24 semi-meridians with an angular separation of 15 degrees and covering an area of 10 degrees at an examination distance of 2 m. A detailed description of the system, light sources and acquisition procedure has been reported previously. 20 For the purposes of the present study, semi-meridians with an angular separation of 30 degrees were analysed in order to reduce the time of examination.…”

Section: Light Disturbancementioning

confidence: 99%

“…Light disturbance can be caused by defocus, degradation of an optical system, scattering, opacities in optical media, diffraction or aberrations. 2,19,34 An increase in positive spherical aberration is related to an increase in light disturbance, while negative spherical aberrations are associated with lower levels of light disturbance. 15,37 Macedo-de-Araujo et al 37 reported that an increase of +0.15 lm in spherical aberration leads to an increase of between 10% and 20% in LDI.…”

Section: Light Disturbancementioning

confidence: 99%

“…[4][5][6] These new designs are being used clinically for myopia control. 2,3 Even though visual acuity (VA) remains acceptable in the majority of patients, many still complain about insufficient quality of vision and dysphotopsia. 3 Therefore, the evaluation of photic phenomena and ocular aberrations adds valuable information to the simple VA assessment.…”

Section: Introductionmentioning

confidence: 99%

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Comparison of short‐term light disturbance, optical and visual performance outcomes between a myopia control contact lens and a single‐vision contact lens

García‐Marqués

Macedo-de-Araújo

Cerviño

et al. 2020

Ophthalmic Physiologic Optic

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Section: Light Disturbancementioning

confidence: 99%

Section: Light Disturbancementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Comparison of short‐term light disturbance, optical and visual performance outcomes between a myopia control contact lens and a single‐vision contact lens

García‐Marqués

Macedo-de-Araújo

Cerviño

et al. 2020

Ophthalmic Physiologic Optic

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“…These ndings show that the changes in HOA induced by dual-focus designs (such as MiSight) are substantially more pupil-dependent than the center-distance MFCL designs 31,34 and shows the role of SA whose magnitude differently affects the myopia control. 34 Previous MASS studies have also reported an increase on monocular light disturbance perception 28 and near-vision worsening 26 in subjects wearing MiSight (study group) compared with subjects wearing single-vision spectacles (control group). Nevertheless, over 2 years of follow-up there could be seen a signi cant binocular attenuation effect, and a consequent decrease in the monocular light disturbance.…”

Section: Discussionmentioning

confidence: 96%

Ocular and Corneal Aberrations changes in controlled randomized clinical trial MiSight® Assessment Study Spain (MASS)

Lopes-Ferreira

Ruiz-Pomeda

Pérez-Sánchez

et al. 2020

Preprint

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BackgroundTo compare ocular and corneal inherent aberrations in the naked eyes of randomly selected children fitted with MiSight contact lenses (CL) for myopia control, versus children corrected with single-vision spectacles (control), over a 24-months period.MethodsChildren aged 8 to 12 years, with myopia (-0.75 to -4.00 D sphere) and astigmatism (< -1.00 D cylinder), were assigned to the lens study group (MiSight) or the control group (single-vision spectacles). Axial length (AL) was measured by biometry, corneal RMS (RMS_C), corneal high order RMS (HO_RMS_C), corneal low order RMS (LO_RMS_C), ocular total RMS (RMS_T), ocular total high order RMS (HO_RMS_T), ocular total low order RMS (LO_RMS_T), corneal spherical aberration (SA_C) and ocular total SA (SA_T) were calculated by aberrometric measures at the baseline, and on 12- and 24-months visits. A 5 mm diameter was defined for the analysis in all visits for all subjects. Only the dominant eye was analyzed.ResultsSeventy-four subjects completed the clinical trial: 41 subjects from the MiSight group (age: 11.01 ± 1.23 years) and 33 from the single-vision group (age: 10.12 ± 1.38 years). In the control group, axial length changed significantly (0.444 ± 0.049 mm, p < 0.001) after 2 years. Also RMS_T (0.565 ± 0.199 µm, p = 0.029) and LO_RMS_T (0.461 ± 0.175 µm, p = 0.047) registered significant changes after 24-months in the control group. In the MiSight group, only axial length changed significantly (0.284 ± 0.025 mm, p < 0.001) after 2 years. The SA_C and SA_T did not reveal significant changes between visits or between groups.ConclusionsThe wear of MiSight CL did not induce significant changes in aberrations in anterior cornea and contrary of control group the total ocular RMS and low order RMS did not significantly caused by significantly lower eye growth and myopia progression,Trial registration: ClinicalTrials.gov Identifier: NCT01917110.

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“…should be used in the future as myopia control devices can induce some degree of dysphotopsia, particularly under dim lighting conditions [85,127].…”

Section: Visual Acuity and Dysphotopsiamentioning

confidence: 99%

Bifocal and Multifocal Contact Lenses for Presbyopia and Myopia Control

Remón

Pérez-Merino

Macedo-de-Araújo

et al. 2020

Journal of Ophthalmology

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Bifocal and multifocal optical devices are intended to get images into focus from objects placed at different distances from the observer. Spectacles, contact lenses, and intraocular lenses can meet the requirements to provide such a solution. Contact lenses provide unique characteristics as a platform for implementing bifocality and multifocality. Compared to spectacles, they are closer to the eye, providing a wider field of view, less distortion, and their use is more consistent as they are not so easily removed along the day. In addition, contact lenses are also minimally invasive, can be easily exchangeable, and, therefore, suitable for conditions in which surgical procedures are not indicated. Contact lenses can remain centered with the eye despite eye movements, providing the possibility for simultaneous imaging from different object distances. The main current indications for bifocal and multifocal contact lenses include presbyopia correction in adult population and myopia control in children. Considering the large numbers of potential candidates for optical correction of presbyopia and the demographic trends in myopia, the potential impact of contact lenses for presbyopia and myopia applications is undoubtedly tremendous. However, the ocular characteristics and expectations vary significantly between young and older candidates and impose different challenges in fitting bifocal and multifocal contact lenses for the correction of presbyopia and myopia control. This review presents the recent developments in material platforms, optical designs, simulated visual performance, and the clinical performance assessment of bifocal and multifocal contact lenses for presbyopia correction and/or myopia progression control.

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Light disturbance analysis in the controlled randomized clinical trial MiSight® Assessment Study Spain (MASS)

Cited by 20 publications

References 22 publications

Comparison of short‐term light disturbance, optical and visual performance outcomes between a myopia control contact lens and a single‐vision contact lens

Comparison of short‐term light disturbance, optical and visual performance outcomes between a myopia control contact lens and a single‐vision contact lens

Ocular and Corneal Aberrations changes in controlled randomized clinical trial MiSight® Assessment Study Spain (MASS)

Bifocal and Multifocal Contact Lenses for Presbyopia and Myopia Control

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