How to recognize a dislocation of the lens and to cure it?
One of the serious ophthalmic diseases is the dislocation of the lens. It can be congenital or resulting from injury to the eye. The lens is a very important part of the eye responsible for the refraction of light. It's a biological lens. In a healthy condition it is firmly located at their permanent place. Ciliary body its fibers supports it from all sides. On the back side it is in contact with a transparent substance filling the void of the organ of vision, vitreous body. Front of the crystalline lens is the iris (iris) is a movable diaphragm. There are two limited space with eye fluid, called front and back camera.
Dislocation is complete or incomplete displacement from the place of permanent residence. In the first case, it is the dislocation, and the second lens subluxation.
Causes and types of pathology
Changing the position of the lens can occur for 2 reasons:
- Acquired dislocation. Associated with physical injury breaks. Various diseases can contribute to the degeneration of eye tissue that causes a shift.
- Congenital dislocation. The disease is the result of a defect of connective tissues because of genetic disorders.
The shift occurs in 2 directions:
- Into the vitreous body. Biological lens changes its normal position in the pupil area, comprising a smaller or larger part of it. The lens can Piatnitsa, and can be transparent. It becomes noticeable. This is usually a subluxation. A complete dislocation is very rare, his doctors associated with abnormal development of the fetus. At partial, there is a significant decrease in visual acuity may develop serious eye diseases.
- In one of the chambers of the eye: it can be both front and rear. The lens is moved to one of them. However, he squeezes the iris. In the end, developing acute inflammatory process in the body. Damaged cornea developing glaucoma. Being in one or another of the camera lens prevents fluid inside the eye to make the outflow, as it covers the natural duct. If there was a complete dislocation, the lens occupies the entire chamber. The pupil is deformed. Comes sudden vision loss.
The causes of pathology and experts attribute the changes associated with aging: the decline and weakening of the elasticity of the natural ligament responsible for the retention of the lens in the allotted nature. If the patient acquired cataract or glaucoma, it is even moreprecipitating factor for the displacement of the lens.
The symptoms of the disease and its diagnosis
The main symptoms are: iridophores (or tremor of the iris) and decreased vision. The iris is a very delicate fabric. She comes into contact with the lens when the dislocation starts shaking a little, and passed the iris - that is why there is iridotomies.
It is often possible to observe without the use of special tools. And sometimes, we have to use the slit lamp. Thus it is necessary to take eye easy movements from one side to the other. Abrupt eye movements were not allowed to see anything.
But the lens subluxation is manifested by tremor is not in every case. This happens only in case of simultaneous rupture of the ligament and the appearance of the defect in the vitreous body. In this state pathology recognize the symptoms that are discovered during the special examination - biomicroscopy. Revealed a different depth of both cameras: the back increases, and the front may become smaller. Upon inspection of the rear camera cannot be seen, so its depth is judged by distance between the pupil and the lens.
The treatment starts soon after diagnosis. The doctor carefully examines the patient. Tested the visual acuity and test visual fields. The doctor performs a visual inspection of the patient's eye. Examined the cornea, the pupil, the position of the slits of the eyes and their size. Around and ever their position. Carefully examined machines: the Central and the subordinate. Test how the pupil reacts to any light, because the lens is responsible for svetopropuskanie.
Methods of treatment of the disease
The data of pathology of the eye lens require the selection of an individual treatment. Everything counts: the nature of change, the degree of displacement, what is visual acuity, what is the pressure inside the eye, what is the General state of the organ of vision.
Need urgent surgical intervention to remove the lens in that case, if the dislocation occurred in the anterior chamber. If the dislocation is migratory in nature, also requires operative intervention.
If the subluxation does not cause deterioration of vision and no changes in intraocular pressure, removal is not required. In this case, the doctor prescribes corrective treatment (corrective lenses) and regular monitoring of the patient.
If the damage makes it difficult to see, but the doctor suggests that visual acuity would be improved after lens removal, the operationrecommended and under normal pressure within the eye.
With the development of glaucoma after dislocation is also recommended deletion of Bioline. If in such a situation, the vision of the good and not spoiled, instead of deleting some experts recommend surgery against glaucoma. Remove the crystalline lens through the incision in the cornea, if the dislocation occurred in the anterior chamber. Luxation into the vitreous body using a path through the ciliary body.
The prognosis for visual recovery is very individual. Depends on many parameters, including health status of the patient.
It depends on the timing of diagnostic studies and therapeutic measures - everything must be done on time. Launched the disease often leads to vision loss, either partial or complete.
After that often come and psychological problems. But if in time to see a doctor, then surgery may not even be necessary if case is easy.
The most dangerous might be the consequences of the dislocation into the anterior chamber. In this case, the intraocular fluid ceases to circulate as expected, due to the fact that the lens prevents this. Developing glaucoma. This is reflected on the retina, the optic nerve. The threat that this process is transient. Can occur corneal edema, damage of the inner layer and much more.
The consequences can occur after surgery. Not in all cases, surgery has a positive outcome.
This is more for those cases which are caused by eye injury, after which the lens was displaced into the vitreous body. Such operations are the most complex. Moreover, there are complications from the side of the lens and the entire body.
The result of treatment of such patients does not always have a positive effect. Can develop different eye diseases, until retinal detachment and loss of the vitreous body.