DE 202006010638
DESCRIPTION
Far or myopia treatment device
The invention concerns a device, which is able to train the eye musculature and to some extent to correct thus also the far or myopia, as a picture is projected by a micro mirror chip changeful near and far in the eye.
One the usually-common visual disturbance into the earth population is myopia. That is a visual disturbance, which very often prepares problems for the concerning. The concerning sees the articles in its proximity clear and clear, but the articles unclearly, which far away from it are. Of it above all old humans are concerned. In addition, with young humans this defective vision (sight defect) is also often present. With them either the refractive parts that of eye, above all cornea/callosity and/or lens of the standard deviate, or the form of the eye does not permit a correct focusing. If the jets are broken falsely in such a way that the focus behind the retina (Retina) develops, then one speaks of hyperopic. If they are however already bundled before the retina, then myopia is present.
This kind of visual disturbances (or sight defect) are repaired by an operation, a dioptre suitable eyeglasses or contact lenses.
The eyeglasses bring also disadvantages with itself. It can be to ugly e.g. too largely, too heavily. It is not so pleasant also, if one must carry it a longer time. In that case, leaves it pressure points on the nose or ear. It must be cleaned regularly and always be in the proximity, if one needs it. The eyeglasses have also different disadvantages, which disturbs much during driving a car:
- it makes optically our field of sight view smaller already by its lens, even if it has a large framework,
- it limits disturbing our field of vision/field of view by its framework,
- it loads our eyes,
- it disturbs with sporty activities,
- it can hurt our eyes seriously if one falls,
- it limits our freedom of movement, since one must constantly watch out (e.g. with the sport).
Contact lenses do not cut off also much better than the eyeglasses. They often cause eye irritations, because they are in the direct contact with the eyes.
The visual disturbances can be repaired also differently: by a lens/a ring implant or a laser operation.
A part of the cornea/callosity is cleared away by the operation. The cornea/callosity form is modelled in such a way in the axis of vision by removing from cornea/callosity portion cups by means of laser beams that the resulting refraction power of the cornea/callosity fits again the eye apple length. First the highest cell layers of the cornea/callosity within the treatment range are scraped off or removed with the laser. Afterwards the actual treatment follows. With laser further cornea/callosity fabric is cleared away. The operation takes seconds until minutes, it is pain-free, ambulatory is accomplished and for beta exercise is usually sufficient eye drops. After the operation the eye is connected, touched down possible a contact lens.
Particularly within the next 24 hours stronger pain arises to the complaints comparably with tears, burning, turning red, light shyness and foreign body feeling, after an injury by a branch struck into the eye. These complaints are after three to
four days usually faded away, if the surface layer renewed itself again. During the healing of the lesion the eye is sensitive in relation to external influences. In the first days also vision is disturbed noticeably. With the treatment of defective visions, with which the laser treatment is scientifically recognized, is the further normal process as follows:
About usually easy to moderate turbidity at the treated cornea are formed one month after the operation, which regress approximately after four months gradually again and in all rule after approximately two to three years disappeared. One usually after the operation arising glare sensitivity is comparable to the glare when carrying hard or soft contact contacts. It decreases with the time, so that it is not usually no more noticed after some months. Temporary worse seeing in the darkness is in the first months after that
Operation normally and improves after some time. Only about 6 months after the operation the optical effect of the interference remains stably;
possible secondary interferences are to be therefore usually considered only after this time. Within this time the sight can be decreased and vary in the far from and close range.
Sometimes successes are not guaranteed always and them lead to a degradation of the situation. The operation is usually rather expensive.
That the eyes to be trained, in order to see better, is nothing new can do. With a purposeful training one can correct in particular myopia.
Registration DE 102 17 344 describes short or hyperopic syndrome eye treatment equipment that of at least one field of view, of at least one LCD or TFT screen, in which the eye patient can see it consists, as an object or a figure is projected, whereby a control or a program, which is coupled with the screen and which the object in the screen dynamically times blurred and represents to see times clear and so that virtually from the observer rhythmically removes or more near brings the object, exists.
The registration DE 102 17 347 describes likewise a short or hyperopic eye treatment equipment that out at least
a dioptre or a focus adjustable lens system exists, which focuses reflected rays of light in such a way from the objects or figures fixed with the eye into the eye retina the fact that its focus lies dynamically steered within a range, which covers a short and precise distance pre, in and behind the eye Retina and thus a close and a remote accommodation of the eye of the patient causes.
These devices are to be caused able a visual acuity correction. The equipment produces a picture, which swivels itself back and forth along a longitudinal axis and which eye musculature trains thereby. The equipment exhibits a complicated optics, as well as a control, which changes the distance that eye and the produced picture swing-like.
The method with optical lens system makes the equipment relatively large and complicates.
In the requirements for protection 1 to 7 indicated the invention is the basis the problem, an improved, almost maintenance-free, small, to create durable equipment which exhibits little susceptible mobile parts and which is able to reach visual disturbances such as short or hyperopic within as short a period as possible and without OI interference or any portable eyewear elements an improvement of visual acuity.
This problem becomes with in the requirements for protection the 1 to 7
specified characteristics solved.
Advantages of the invention are:
- more simply and more durably built,
- small dimensions,
Remark examples of the invention are described on the basis the figures 1 and 2. Show:
Fig. 1 a representation of the invention, which exhibits a mirror chip,
Fig. 2 a variant with a circular micro mirror chip,
the equipment.
The equipment repairs certain visual disturbances, above all myopia in a similar way, as the equipment from DE 102 17 347. The equipment is only programmed and adjusted to the individual visual acuity. The concerning must in-see into the field of view of the equipment some minutes long daily and for one period of some weeks or even months. The user must look into the sight field of view and may not do it with any eyewear (Eyeglasses or contact lens). The same effects as with are to be expected DE 102 17 347. The invention is here a large improvement of the equipment of DE 102 17 347. Exactly like while stationary the technology described equipment, runs also here the treatment without effort and not as unpleasant is felt.
Advantages of the invention and/or the visual disturbance treatment equipment are:
- it can be adjusted and steered more exactly,
- it is more simply built,
- maintenance-free enterprise,
- very good results by sharper projections,
- inexpensive in the production.
The equipment consists of at least one micro mirror chip 1, which causes a dioptre oscillation. The chip is e.g. a DLP chip (digital Light processing). Those are chips, whereby many micro mirrors are inserted, which are individually controllable mobile. This chip can be steered in such a way that it simulates a curved mirror or parabola mirror. Combined with a lens system this device can project a picture on the eye Retina, which approach and remove the eye 2 changeful. By these longitudinal oscillations in the optical
Axle 3 is trained the sight acuity of the too treated person. Its eyepiece takes part in the longitudinal oscillation and their cilliar muscles is strengthened. Rather however the eye muscles are trained, which strengthen the effect to a large extent. An electronic control unit 4 regulates the movements of the micro mirror elements 5. To be diverted the micro mirror elements are the rays of light able around an angle to swivel itself and. These mirror chips are used with the picture projectors or also back projection television sets. The equipment can with a dioptre measuring instrument for the determination of the vision acuity of the eyes of the patient.
By its movement the eye sees a fixed object times clear and times blurred. The dioptre of the entire system changes within a before programmed framework. Changes of dioptre are in approx. 0.5 to 1 Dpt. the vision acuity of the patient to be made, and best the each mark toward dioptre of 0. If the patient a vision acuity of -2 Dpt. , is a dioptre oscillation of the equipment within range has -1.5 to -2 Dpt. are calibrated. The speed, with which the changes of dioptre arise, can be programmed before also according to desire of the patient.
Also the eye is also pulled in by this dioptre oscillation of the equipment into the process. An oscillating frequency can be individually adapted. One achieves the best and fastest results with a frequency, which causes a resonance with the accommodation strength of the eye. This frequency can amount to e.g. between 0,13 cycles per second and 0.8 cycles per second.
The patient is not to be treated continuously to for a long time with the equipment. It usually hands a time of approx. 3 - 10 minutes on the day. The treatment time, presupposed it is accomplished until approx. 10 minutes daily, can be continued arbitrarily long beyond months. The patient feels after some weeks an improvement of his sight usually already. The amplitude of the oscillations must be stopped absolutely individually for each patient and for each eye separately. This method, is used it correctly, shows no side effects.
The variant, which is represented in the figure 2, shows a system with circular micro mirror chip 6. The micro mirror chip 6 can be provided with an opening 7 in the centre, by which the picture projection jets are reflected over a further curved mirror element optimally at the micro mirror chip.
The mirrors do not have to be moved up or by each other. It hands if only the micro mirror elements swivels themselves and curved mirrors simulates, whose diversion coefficient is changeable. The mirror chip simulated thereby a times more strongly times less curved mirror and in this way continues to project the picture times more near times into the eye. Best one uses this technology doubly, so that a Stereo-image appears on both eyes the patient. The picture distance swings with a frequency, which was entered before over the control. The swinging amplitude must be entered likewise before.
The picture, which is processed by the micro mirror chip, can develop from an article in the field of vision of the device or produce from a screen artificially. As imaging element can be e.g. inserted an LCD/a TFT or a OLED screen 8, whereby the picture is reflected by the micro mirror element into the eye.
By the way the system can be used with small modifications and by use of highly soluble micro mirror chips also for telescopes or microscopes. Of course the equipment can be conceived in such a way that it functions fully automatic. A control, which works with phase cut technology, can steer the micro mirror elements in such a way that they take two certain positions and with a controllable pulse frequency between the two positions switch. That would produce a image projection, which departs very fast into a certain distance and comes then again more near.
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