Stereoacuity after wavefront-guided photorefractive keratectomy in anisometropia

Karimian, Farid; Ownagh, Vahid; Amiri, Mohammad Aghazadeh; Tabatabaee, Seyed Mehdi; Dadbin, Nooshin

doi:10.4103/jovr.jovr_138_16

Cited by 15 publications

(11 citation statements)

References 19 publications

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“…These symptoms usually become obvious when the degree of anisometropia is 2.50 D or more [2-4]. High degrees of anisometropia could lead to a significant difference in the retinal image size and cause asthenopia, amblyopia, and stereopsis impairment [5, 6]. Anisometropia is a rather rare condition in the general population.…”

Section: Introductionmentioning

confidence: 99%

“…Interventions [5, 23-25] that have been attempted for this condition include glasses, multifocal lenses, multifocal contact lenses, atropine, and surgery. However, despite providing an amelioration of the patients’ vision, these treatments do not provide adequate myopia control effects, and the magnitude of myopic anisometropia might even increase over time.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Orthokeratology on Axial Length Elongation in Anisometropes

Bei

Qingmei

et al. 2021

Ophthalmic Res

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Introduction: This study aimed to investigate the therapeutic effects of overnight orthokeratology (OK) lenses on anisometropes. Methods: We enrolled 178 anisometropes from August 2015 to August 2017. We then divided these patients into 2 parts depending on them wearing either monocular or binocular OK lenses. In part one, 47 monocular myopic subjects (25 males and 22 females) were treated with OK lenses in the myopic eyes only. We also labeled the myopic eyes as the OK group and the contralateral nonmyopic eyes as the control group. The initial average wearing age of the subjects was 12.35 ± 2.37 years (8–16 years). The mean follow-up duration was 15.43 ± 4.88 months (7–25 months). The average spherical equivalent refraction (SER) was −2.31 ± 1.16 diopter (D) in the OK group and 0.15 ± 0.49 D in the control group (p < 0.001). In part 2, 131 binocular myopic anisometropes (56 males and 75 females) were involved in the study. The eyes with more severe myopia were assigned to the G group and the contralateral eyes to the L group. The initial average wearing age of the subjects was 12.92 ± 2.60 years ( 8–16 years). The mean follow-up duration was 17.83 ± 5.02 months (7–26 months). The average SER was −4.79 ± 1.90 D in the G group and −3.14 ± 1.88 D in the L group (p < 0.001). We calculated the axial length (AL) difference and AL elongation as our primary outcome measures. Results: In part one, the AL elongation in the OK group (0.21 ± 0.09 mm) was significantly lower than that in the control group (0.70 ± 0.17 mm) at 24 months (p < 0.001). Meanwhile, the AL difference exhibited a decrease of 0.50 ± 0.29 mm from a baseline of 1.08 ± 0.35 to 0.58 ± 0.25 mm at 24 months (F = 24.539, p < 0.001). In part 2, the AL had increased by 0.17 ± 0.13 mm in the G group and 0.24 ± 0.18 mm in the L group after 24-month follow-up, respectively (p < 0.001). While the AL difference decreased from 0.55 ± 0.11 mm at the baseline, to 0.48 ± 0.08 mm at 24 months, eliciting a decrement in AL difference of 0.07 ± 0.09 mm (F = 3.884, p = 0.030). Conclusions: OK lenses can slow down AL growth in anisometropes and has a greater effect on reducing AL elongation in the more severely affected myopic eyes of anisometropic patients.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effects of Orthokeratology on Axial Length Elongation in Anisometropes

Bei

Qingmei

et al. 2021

Ophthalmic Res

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“…Anisometropia is a specific type of refractive error defined as a between-eye difference of ≥ 1.00 dioptre (D) 1 – 3 . According to the Ojai longitudinal study, the prevalence of anisometropia among 5–14-year-old children ranged between 0.9% and 2.4% 4 .…”

Section: Introductionmentioning

confidence: 99%

A comparative study of orthokeratology and low-dose atropine for the treatment of anisomyopia in children

Tsai

Wang

Chiu

2020

Sci Rep

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Myopic anisometropia (anisomyopia) is a specific type of refractive error that may cause fusion impairment, asthenopia, and aniseikonia. It is sometimes severe enough to reduce the quality of life. Several studies have investigated the treatment effects of orthokeratology (Ortho-K) and topical atropine on anisomyopia control. However, no study has compared these two interventions simultaneously until now. The cohort of this retrospective study included 124 children with anisomyopia who were treated with binocular Ortho-K lenses, 0.01% atropine, or 0.05% atropine. After a 2-year follow-up, the inter-eye difference in axial length (AL) significantly decreased in the Ortho-K group ( P = 0.015) and remained stable in the two atropine groups. When comparing the myopia control effect, the use of Ortho-K lenses resulted in an obviously smaller change in AL than the use of 0.01% and 0.05% atropine ( P < 0.01). Ortho-K treatment may reduce the degree of anisomyopia and stabilise the progression of myopia. Hence, Ortho-K might be a better choice for anisomyopic children.

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“…However, spectacle might not be tolerated by many anisometropic patients because of the lens effect-related aniseikonia. 7 Contact lenses decrease the aniseikonia to make it more tolerable for anisometropic patients to see.…”

mentioning

confidence: 99%

Orthokeratology Lenses Versus Administration of 0.01% Atropine Eye Drops for Axial Length Elongation in Children With Myopic Anisometropia

Yan

Qin

et al. 2021

Eye &Amp; Contact Lens: Science &Amp; Clinical Practice

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To investigate the effect of orthokeratology (OK) lenses and that of 0.01% atropine eye drops on axial length (AL) elongation in children with myopic anisometropia. Methods: Ninety-five children with myopic anisometropia who used OK lenses (N¼49) or 0.01% atropine eye drops (N¼46) were enrolled in this retrospective 1-year study. For all children, the eyes with higher spherical equivalent refractive error (SER) were assigned to the H-eye subgroup, whereas the fellow eyes with lower SER were assigned to the L-eye subgroup. Results: After 1-year treatment, the mean change in the AL of H eyes and L eyes in the OK lenses group was 0.1860.16 mm and 0.2460.15 mm, respectively (P¼0.15), and 0.2860.20 mm and 0.2560.18 mm, respectively (P¼0.48), in the 0.01% atropine group. Multivariate regression analyses showed significant differences in AL change between H and L eyes after treatment with OK lens (P¼0.03), whereas no significant difference in the 0.01% atropine (P¼0.22). The change in the AL in the H-eye group was less with OK lenses than with 0.01% atropine (P¼0.04), whereas there was no significant difference between the change in AL in the L-eye group between treatment with OK lens and 0.01% atropine (P¼0.89). Conclusions: In myopic anisometropic children, AL differences between 2 eyes decrease by wearing OK lenses but do not change after administration of 0.01% atropine eye drops. The increased effect of OK lenses, but not 0.01% atropine, in reducing axial elongation at 1 year in the eye with higher SER in anisometropic children warrants further investigation.

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Stereoacuity after wavefront-guided photorefractive keratectomy in anisometropia

Cited by 15 publications

References 19 publications

Effects of Orthokeratology on Axial Length Elongation in Anisometropes

Effects of Orthokeratology on Axial Length Elongation in Anisometropes

A comparative study of orthokeratology and low-dose atropine for the treatment of anisomyopia in children

Orthokeratology Lenses Versus Administration of 0.01% Atropine Eye Drops for Axial Length Elongation in Children With Myopic Anisometropia

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