Tension of Cornea Scleral Shell in Myopia

Trufanova, L.P.; Fokin, V.P.; Balalin, S.V.

doi:10.20310/1810-0198-2016-21-4-1698-1700

Tamb. Un. Rep. Ser. Nat. Tech. Sci.

2016

DOI: 10.20310/1810-0198-2016-21-4-1698-1700

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Tension of Cornea Scleral Shell in Myopia

L.P. Trufanova¹,

V.P. Fokin²,

S.V. Balalin³

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2018

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Varieties of Constantly Redundant Tension of Accommodation, the Weakness of Accommodation and Intraocular Pressure in Myopia

Trufanova¹,

Balalin²

2018

Ophthalmology in Russia

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Purpose: to evaluate the relationship between the functional state of the accommodative eye apparatus according to the data of accomodography and the increase of the ophthalmotonus in patients with myopia.Patients and methods. There were 74 patients with myopia (148 eyes) from 6 to 17 years old. The mean age of the examined subjects was 12.7 ± 0.32 years. Low myopia was detected in 37 persons (73 eyes), medium myopia — in 23 persons (46 eyes) and high myopia — in 15 persons (29 eyes). Progressive myopia was detected in 110 eyes (74.3%), stationary — 38 eyes (25.7%). Constantly redundant tension of accommodation (CRTA) was found in patients on 134 eyes (90.5%).Results. In 53% patients with progressive myopia (58 eyes) the cornea-compensated intraocular pressure (P0CC) was within the limits of the upper individual norm — from 18 to 21 mm Hg or higher. In progressive myopia with combination of accommodation weakness, CRTA and an increase of IOP up to the range of upper norm limits occurs in 4.8 times more often than with stationary myopia (t = 4.7, p < 0.05).Сonclusions. It is necessary to measure intraocular pressure in patients with myopia taking into account the biomechanical properties of the sclera in case of accomodation arrors in the form of a combination of accommodation weakness and CRTA. The combination of accommodation weakness, CRTA and elevated IOP (upper-range) indicates the progression of myopia.

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Varieties of Constantly Redundant Tension of Accommodation, the Weakness of Accommodation and Intraocular Pressure in Myopia

Trufanova¹,

Balalin²

2018

Ophthalmology in Russia

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To the Question of Stability of Refractive Result After Excimer Laser Correction of Myopia

Solodkova

Fokin

Balalin

2018

Journal of Volgograd State Medical University

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Проведен анализ 12 случаев возникновения миопического регресса после проведения эксимерлазерной коррекции миопии. Установлены причины регресса рефракционного результата, которые можно разделить на роговичные и склеральные. Стабильность рефракционного результата после эксимерлазерной коррекции миопии определялась сохранением корнеосклеральной ригидности, которая зависит от исходных значений внутриглазного давления, величины переднезаднего отрезка глаза и толщины роговицы в центральной оптической зоне.

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Biomechanical Properties of the Corneoscleral Membrane of the Eye With Progressive Myopia Before and After Screroplastics

Trufanova

Balalin

Fokin

2018

Journal of Volgograd State Medical University

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Обследованы 136 пациентов с прогрессирующей миопией (192 глаза) -основная группа и 113 пациентов (113 глаз) со стационарной миопией. Возраст пациентов от 8 до 17 лет, средний возраст (12,5 ± 0,07) лет. Срок наблюдения от 1 до 7 лет. Обследованы также 46 пациентов с эмметропией (46 глаз) и 30 пациентов с гиперметропией слабой степени (30 глаз) от 6 до 17 лет. Установлено, что прогрессирование миопии характеризуется увеличением переднезаднего размера глазного яблока, уменьшением толщины склеры, снижением корнеального гистерезиса и ригидности корнеосклеральной оболочки, сопровождается в 83,3 % случаев повышением внутриглазного давления до верхних значений нормы и выше, что, в итоге, приводит к повышению напряжения корнеосклеральной оболочки глаза, снижению биомеханических свойств склеры и прогрессированию миопии.

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Tension of Cornea Scleral Shell in Myopia

Cited by 5 publications

References 0 publications

Varieties of Constantly Redundant Tension of Accommodation, the Weakness of Accommodation and Intraocular Pressure in Myopia

Varieties of Constantly Redundant Tension of Accommodation, the Weakness of Accommodation and Intraocular Pressure in Myopia

To the Question of Stability of Refractive Result After Excimer Laser Correction of Myopia

Biomechanical Properties of the Corneoscleral Membrane of the Eye With Progressive Myopia Before and After Screroplastics

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