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

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...

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Bibliographic Details
Main Authors: L. P. Trufanova, S. V. Balalin
Format: Article
Language:Russian
Published: Ophthalmology Publishing Group 2018-07-01
Series:Oftalʹmologiâ
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Online Access:https://www.ophthalmojournal.com/opht/article/view/646
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Summary: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.
ISSN:1816-5095
2500-0845