‘The role of accommodative function in myopic development: A review.’

Prousali, Efthymia; Haidich, Anna‐Bettina; Tzamalis, Argyrios; Ziakas, Nikolaos; Mataftsi, Asimina

doi:10.1080/08820538.2021.2006724

Cited by 14 publications

(4 citation statements)

References 60 publications

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“…When full-time myopia correction is used, an inadequate accommodative response for a near target would extend the presence of hyperopic defocus, thereby triggering axial elongation and myopia progression. In keeping with this presumption, full-time corrected participants would be expected to demonstrate greater myopia progression compared to the part-time corrected group, given that myopes may exhibit an accommodative lag at near distances [21]. Nonetheless, this was not supported by our findings.…”

Section: Discussioncontrasting

confidence: 54%

Part-time Versus Full-time Spectacles for Myopia Control (ParMA Study): A Randomized Clinical Trial

Prousali

Haidich

Dastiridou

et al. 2022

Cureus

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IntroductionTo compare myopia progression in school-aged children of Caucasian origin wearing part-time vs. full-time full correction with single-vision spectacles. MethodsThis prospective, randomized controlled trial included 30 children with bilateral myopia, who received either full-time or part-time treatment with single-vision spectacle lenses. Myopia progression was assessed as the mean change in cycloplegic spherical equivalent refraction (SE), mean change in axial length (AL), and mean change in sub-foveal choroidal thickness (SChT), over a 12-month follow-up period. ResultsA total of 32 eyes were treated with part-time single-vision spectacles (intervention group) and 28 eyes with full-time single-vision spectacles (control group), respectively. The part-time treated group reported no spectacle use during near-work activities for a mean of 6.2 hours/day. At the 12-month assessment, there was no significant difference between part-time and full-time correction groups in mean SE change (MD: -0.05 D, 95%

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Section: Discussioncontrasting

confidence: 54%

Part-time Versus Full-time Spectacles for Myopia Control (ParMA Study): A Randomized Clinical Trial

Prousali

Haidich

Dastiridou

et al. 2022

Cureus

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“…Nevertheless, this suggests that any factors exacerbating scleral ischemia should be avoided, and any factors improving scleral blood supply should be emphasized. Additionally, the occurrence and development of myopia are associated with accommodative lag, as extensively evidenced in the literature ( 22-25 ). Ischemia of the ciliary body and iris will undoubtedly affect the normal functioning of eye regulation.…”

Section: Discussionmentioning

confidence: 89%

Effects of wearing myopia glasses on eye movement and scleral blood supply

Tan,

Yang

et al. 2024

Med Int

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The present study examined the effect of wearing myopia glasses on eye movement and scleral blood supply. For this purpose, a total of 30 individuals were recruited for the present self-control study. Under the same fixation distance, the individuals wore 0.00 D and -10.00 D glasses. The amount of eye movement generated when shifting from gazing at a central point to a point light source located at the left or right was measured and compared between the two glasses. The results revealed that the range of eye movement was significantly reduced after wearing -10.00 D glasses. When gazing at the right point light source from the central point, the difference between the rotation distances of the right eye when wearing the 0.00 D glasses and the -10.0 D glasses was 0.73±0.45 mm (t=8.93, P<0.01) and that of the left eye was 0.73±0.43 mm (t=9.34, P<0.01). Similar results were obtained when the left point light source was viewed from a shift in gaze from the central point. On the whole, the present study demonstrates that wearing concave lenses limits eyeball movement. Restricted eyeball movement can affect vascular changes within the extraocular muscles and blood flow, thereby affecting the blood supply to the anterior segment and sclera of the eye, potentially accelerating the development of myopia.

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“…Normal asymptomatic individuals have an accommodative lag of 0.50 ± 0.25 D during binocular accommodation at a 0.4 m distance [ 20 ]; however, accommodative lag is higher in people with myopia than those with emmetropia [ 8 , 18 , 21 ]. Previous studies have also suggested that accommodative lag may increase the prevalence of myopia [ 18 , 22 ] as hyperopia defocused and blurred images on the retina as a result of accommodative lag, accelerating the elongation of the eye axis and leading to the progression of myopia [ 22 ]. A study on adults with myopia aged 18–22 years showed that a higher accommodative lag increased myopia progression rates [ 23 , 24 ].…”

Section: Discussionmentioning

confidence: 99%

Immediate Effects of Vergence Exercises Using Automatic Dual Rotational Risley Prisms on Accommodative Lag and Facility

Huang,

Su,

et al. 2023

Ophthalmol Ther

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Introduction This study evaluated novel automatic dual rotational Risley prisms (ADRRPs) as a vergence exercise tool for patients with myopia to improve accommodative lag and accommodative facility. Methods Participants with myopia aged 20–24 years were recruited. After vergence exercises with prisms (treatment group) or plano lenses (control group) using ADRRPs for 10 min, measurements were taken using an open-field autorefractor (Grand Seiko WAM-5500) at viewing distances of 0.4 m and 6.0 m. We measured accommodative facility using a ± 2.00 D accommodative flipper. Results A total of 56 participants (treatment group, 39; control group, 17) performed vergence exercises using ADRRPs. Participants in the treatment group showed improvements in accommodative lag at a 0.4 m viewing distance, with measurements of 0.57 D (right eye; OD) and 0.53 D (left eye; OS) and 0.21 D (OD) and 0.27 D (OS) before and after the exercises, respectively ( p < 0.001). Over-refractions using an open-field autorefractor with spherical equivalent contact lenses at a 6.0 m viewing distance were − 0.01 ± 0.30 D (OD) and 0.03 ± 0.34 D (OS) and 0.15 ± 0.32 D (OD) and 0.19 ± 0.28 D (OS) before and after the exercises, respectively (difference + 0.16 D; p < 0.001). Accommodative facility values before and after exercises were 14.88 ± 3.36 and 15.59 ± 3.60 cpm, respectively ( p < 0.01). No significant differences in accommodative lag, relaxation, and accommodative facility before and after exercise were observed in the control group. Conclusions Using ADRRPs in vergence exercises can improve accommodative lag, accommodative facility, and accommodative relaxation in adults with myopia. Further research to evaluate persistent and long-term effects is needed.

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‘The role of accommodative function in myopic development: A review.’

Cited by 14 publications

References 60 publications

Part-time Versus Full-time Spectacles for Myopia Control (ParMA Study): A Randomized Clinical Trial

Part-time Versus Full-time Spectacles for Myopia Control (ParMA Study): A Randomized Clinical Trial

Effects of wearing myopia glasses on eye movement and scleral blood supply

Immediate Effects of Vergence Exercises Using Automatic Dual Rotational Risley Prisms on Accommodative Lag and Facility

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