The effect of asymmetrical accommodation on anisometropic amblyopia treatment outcomes

Toor, Sonia; Horwood, Anna M.; Riddell, Patricia M.

doi:10.1016/j.jaapos.2019.05.010

Cited by 8 publications

(5 citation statements)

References 23 publications

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“…consistent with the previous research results (Toor et al, 2019). Hence, this study's findings proposed that anisometropia could lead to abnormal accommodative function, accelerating the development of anisometropia or binocular myopia.…”

Section: Discussionsupporting

confidence: 92%

“…Furthermore, in Group 2, the AA and AF of the myopic eyes were lower than the emmetropic eyes. These suggested that there was no obvious difference in binocular accommodative function in myopic patients with the same refractive state, but some degree of inequality in the binocular accommodative function of patients with anisometropia was found, consistent with the previous research results ( Toor et al, 2019 ). Hence, this study’s findings proposed that anisometropia could lead to abnormal accommodative function, accelerating the development of anisometropia or binocular myopia.…”

Section: Discussionsupporting

confidence: 91%

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Do monocular myopia children need to wear glasses? Effects of monocular myopia on visual function and binocular balance

Xiang

et al. 2023

Front. Neurosci.

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ObjectiveThis study aims to compare the binocular visual functions and balance among monocular myopic adolescents and adults and binocular low myopic adolescents and explore whether monocular myopia requires glasses.MethodsA total of 106 patients participated in this study. All patients were divided into three groups: the monocular myopia children group (Group 1 = 41 patients), the monocular myopia adult group (Group 2 = 26 patients) and the binocular low myopia children group (Group 3 = 39 patients). The refractive parameters, accommodation, stereopsis, and binocular balance were compared.ResultsThe binocular refractive difference in Group 1, Group 2, and Group 3 was −1.37 ± 0.93, −1.94 ± 0.91, and −0.32 ± 0.27 D, respectively. Moreover, uncorrected visual acuity (UCVA), spherical equivalent (SE) and monocular accommodative amplitude (AA) between myopic and emmetropic eyes in Group 1 and Group 2 were significantly different (all P < 0.05). There was a significant difference in the accommodative facility (AF) between myopic and emmetropic eyes in Group 2 (t = 2.131, P = 0.043). Furthermore, significant differences were found in monocular AA (t = 6.879, P < 0.001), binocular AA (t = 5.043, P < 0.001) and binocular AF (t = −3.074, P = 0.003) between Group 1 and Group 2. The normal ratio of stereopsis according to the random dots test in Group 1 was higher than in Group 2 (χ2 = 14.596, P < 0.001). The normal ratio of dynamic stereopsis in Group 1 was lower than in Group 3 (χ2 = 13.281, P < 0.001). The normal signal-to-noise ratio of the binocular balance point in Group 1 was lower than Group 3 (χ2 = 4.755, P = 0.029).ConclusionFirst, monocular myopia could lead to accommodative dysfunction and unbalanced input of binocular visual signals, resulting in myopia progression. Second, monocular myopia may also be accompanied by stereopsis dysfunction, and long-term uncorrected monocular myopia may worsen stereopsis acuity in adulthood. In addition, patients with monocular myopia could exhibit stereopsis dysfunction at an early stage. Therefore, children with monocular myopia must wear glasses to restore binocular balance and visual functions, thereby delaying myopia progression.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionsupporting

confidence: 91%

Do monocular myopia children need to wear glasses? Effects of monocular myopia on visual function and binocular balance

Xiang

et al. 2023

Front. Neurosci.

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“…Нарушение аккомодации у детей с гиперметропией является одним из главных факторов нарушения процесса эмметропизации и поддержания расфокусировки изображения. Наиболее тяжёлые изменения аккомодации наблюдаются у детей с анизометропической амблиопией и гиперметропией, у которых развиваются анизоаккомодация и слабость аккомодации [8]. Для исключения стойких функциональных нарушений и обеспечения полной коррекции у таких детей предпочтительна контактная коррекция.…”

Section: актуальностьunclassified

Changes in accommodation disorders in children with anisometropic amblyopia and hypermetropia

Kulikova,

Aleksandrova

2024

Acta biomedica scientifica

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Background. Accommodation disorders in children with hypermetropia is one of the main factors in emmetropization disorders and maintenance of image defocusing. The most severe changes in accommodation are observed in children with anisometropia and hyperopia.The aim of the work. To evaluate the changes in the accommodative function of the eye in children with hyperopia, amblyopia, who underwent refractive laser surgery (RLS), as well as in children with spectacle and contact lens correction in combination with pleoptic treatment.Methods and materials. Group 1 consisted of 30 children after RLS; group 2 consisted of 29 children who had spectacle correction; group 3 consisted of 26 children who had soft contact lens correction; all children received pleoptic treatment. Clinical examination included the analysis of objective reserves of relative accommodation (RRA) and objective accommodative response (OAR) with an open field autorefractometer, and the results of accommodation measurement.Results. In 1.5 years, statistically significant changes were observed in the coefficient of accommodation response (CAR) of the amblyopic eye between the groups 1 and 2 – 0.12 ± 0.02 and 0.00 ± 0.1 relative units, respectively (p = 0.01). Similar statistically significant changes were obtained in OAR and objective RRA of the amblyopic eye. OAR in the group 1 was –2.1 ± 0.67 dpt, in the group 2 – –1.38 ± 0.19 dpt (p = 0.01). At the end of the observation, the OAR in the group 1 was –2.1 ± 0.67 dpt, the objective RRA – –2.1 ± 0.67 dpt; in the group 2 the OAR was –1.38 ± 0.19 dpt (p = 0.01), the objective RRA – –1.38 ± 0.19 dpt (p = 0.01). There were no statistically significant changes in these parameters of the amblyopic eye between the groups 1 and 3.Conclusion. There was an improvement of accommodation disorders in children with anisometropia, hyperopia and amblyopia after refractive laser surgery and in children with contact lens correction. Due to a decrease in the refractive indices of the amblyopic eye, the values of CAR, OAR and objective RRA after refractive laser surgery tended to be closer to the normal values.

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“…она приблизилась к норме [10]. Опубликованное исследование ученых из Великобритании показало, что у большинства детей с амблиопией высокой степени и анизометропией происходит опережение аккомодации на расстоянии и ее запаздывание на близком расстоянии -антиаккомодация [13].…”

Section: материал и методы исследованияunclassified

“…Принято считать, что аккомодация симметрична в обоих глазах. Но если говорить об анизометропии, то с вероятностью более 80% проявится анизоаккомодация [3].…”

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Comparative Analysis of Accomodative Eye Function in Children With Hypermetropia, Ambliopia and Anisometropia After Fs-Lasik and Children Receiving Conservative Treatment

Kulikova¹,

Aleksandrova²

2021

СПНО (MPSE)

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Цель работы -изучить в сравнительном аспекте особенности аккомодационной функции глаз у детей с гиперметропией, амблиопией и анизометропией после лазерного in situ кератомилеза с фемтолазерным сопровождением (ФемтоЛАЗИК) и детей, получающих консервативное лечение. В настоящее исследование вошли 40 детей с гиперметропической анизометропией и амблиопией высокой и очень высокой степени. Пациенты были разделены на 2 группы: в 1-ю группу вошли дети, которым был выполнен ФемтоЛАЗИК (20 пациентов), во 2-ю -дети, получающие консервативное лечение (20 пациентов). Срок наблюдения -1 год. Средний возраст пациентов в 1-й группе составил 10,5±1,8 года, во 2-й -8,5±2,9 года. Объективные показатели аккомодации измеряли с помощью аккомодографа Righton Speedy К (Nikon, США) и авторефрактометра «открытого поля» WR-5100K (Grand Seiko, Япония). Через 1 год корригированная острота зрения (КОЗ) на амблиопичном глазу составила в 1-й группе 0

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The effect of asymmetrical accommodation on anisometropic amblyopia treatment outcomes

Abstract: The study was conducted at the University of Reading. No competing interests.No financial disclosures.

Cited by 8 publications

References 23 publications

Do monocular myopia children need to wear glasses? Effects of monocular myopia on visual function and binocular balance

Do monocular myopia children need to wear glasses? Effects of monocular myopia on visual function and binocular balance

Changes in accommodation disorders in children with anisometropic amblyopia and hypermetropia

Comparative Analysis of Accomodative Eye Function in Children With Hypermetropia, Ambliopia and Anisometropia After Fs-Lasik and Children Receiving Conservative Treatment

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