Secondary Eye Deviation Angle

The angle of secondary deviation of the eye is the amount of deviation of the visual line of the healthy eye from the normal position when fixing an object with a squinting eye. The angle of secondary deviation can be either positive or negative, depending on which direction the eye deviates.

With a positive secondary deviation angle, the eye deviates outward from the normal visual axis, and with a negative angle, it deviates inward. For example, if a person looks at an object with a squinting eye, then his healthy eye will deviate inward from its normal position. Also, the angle of secondary deviation may depend on the degree of strabismus and on the individual characteristics of each person.

The angle of secondary eye deviation can be measured using special devices such as perimeters. These devices allow you to measure the angle of deviation of the visual line from the normal position and determine the degree of strabismus.

Measuring the angle of secondary ocular deviation is an important diagnostic tool in ophthalmology and can help determine the causes of strabismus, as well as choose the most effective treatment method.

The angle of secondary deviation of the eye is the main parameter that describes the features of the eyeball and its effect on vision. This parameter is measured in degrees, and it is important in clinical practice for determining the condition of the organ of vision.

The angle of deviation of the eye occurs secondary to damage or absence of the lens, when the healthy eye does not control the accuracy of the images, which can lead to disorientation and decreased quality of vision in the affected eye. The angle of secondary deviation is one of the simplest and most accessible indicators in medical practice. It is evaluated as the main diagnostic criterion for glaucoma and congenital astigmatism. It is determined due to the fact that the patient must fix a spot of different sizes at any distance, and at the same time ensure that it remains clearly on the retina of a healthy eye. If the affected eye is deviated by some angle, it will be easier for it to control the position of the spot on the retina. Based on this, the tracking range is determined and compared with the blind spot interval.

The main symptoms are instability of eye movements, double vision, difficulty reading and discomfort while resting. Typically, conservative medication is prescribed during treatment, which includes taking vitamins, drops to dilate the pupil, anti-inflammatory drugs, cholinomimetics, etc. Often, holistic therapy is combined with exercise and yoga to relieve muscle tension. In some cases, surgery is indicated to normalize visual acuity and stabilize the angle of deviation. Operations can be of varying degrees of complexity, from keratomyoplasty to phacoemulsification with implantation of intraocular lenses.