Diagnosis of vision is a complex of accurate methods for detecting eye diseases. It helps to identify almost all pathologies, including the most minor deviations from the norm. Using computer diagnostics of vision, a specialist can make a complete and thorough examination of all structures of the eye and make an accurate diagnosis. Timely and correct diagnosis contributes to the choice of effective treatment. And this is VERY important because many eye diseases can be successfully cured or corrected if not delayed and done on the basis of an unmistakable diagnosis.
Eye exams are performed to:
The determination of visual fields is carried out using a contrasting study, which can help evaluate the approximate degree of loss of visual fields.
Evaluation of pupillary response to light (indirect and involuntary) allows an eye doctor to assess the condition of the optic tract. The absence of a direct light reflex is observed with unilateral damage to the optic nerve and occlusion of the central retinal artery. Intraocular pressure is usually measured using a non-contact tonometer. If necessary, the measurement of intraocular pressure is carried out using a contact tonometer or a Goldman tonometer. To exclude glaucoma, it may be required to do computer perimetry, that is, the study of visual fields.
A refractive examination is performed before any surgical intervention. The exam includes determination of visual acuity with and without correction, biomicroscopy, ophthalmoscopy, tonometry, refractometry (using an auto refractometer), computer corneal topography on a computer topograph, ultrasound biometry, ultrasound pachymetry. The data obtained during diagnosis are used by the surgeon during excimer laser correction.
Before performing refractive surgery, patients undergo pachymetry with a corneal thickness measuring device, which allows calculating the maximum allowable depth of laser exposure, which in cases of a very high degree of myopia determines how much correction is possible.
Any microsurgical or laser interventions are preceded by a full comprehensive computer-aided diagnostic eye exams. The examination reveals the range of existing problems and determines the tactics of treatment.
Any eye disease requires a special approach in treatment, including at the stage of making a diagnosis. Many ophthalmic diseases have similar symptoms, so even experienced professionals cannot make a diagnosis and determine the degree of the disease without a thorough examination using specialized equipment. At an early stage, it is advisable to carry out diagnostics as planned. Below you can see a summary of the main methods for diagnosing eye diseases.
Some types of eye care exams are carried out using drops that dilate the pupil. Given this factor, you should not plan visual work for the next few hours after passing diagnostic procedures. Also, you should not come to the diagnostics behind the wheel since driving a car with an enlarged pupil is dangerous.
If you are planning to undergo measuring the thickness of the cornea and similar exams, it is recommended not to use hard contact lenses 2 weeks before the diagnosis. It is advisable to remove soft contact lenses in the morning on the day of diagnosis, but this can also be done in the clinic, half an hour before the start of the examination.
On the day of vision diagnosis, it is recommended to refrain from using decorative cosmetics for the eyes.
You definitely need to undergo eye tests if you:
Regular diagnosis of vision is also needed for those who have good vision but:
Some visual pathologies may be asymptomatic in the early stages. For example, glaucoma may initially not manifest itself in any way – but meanwhile, if appropriate measures are not taken in time, glaucoma leads to irreversible loss of vision. The same goes for retinal pathology. Certain abnormalities in its work can be detected only during a detailed examination of the fundus. Without the intervention of a specialist, there is a risk of serious deterioration of visual functions.
Many people spend long hours at the computer, forgetting to take at least minimal breaks. At the same time, the visual system can undergo changes that are not immediately noticeable. They can lead to serious problems without timely treatment.
No child can do without the professional attention of an ophthalmologist — in many cases, timely diagnosis of possible deviations in the development of the child’s visual system and timely treatment help prevent dangerous ailments.
Adults are recommended to visit a specialized eye care clinic at least once a year.
Pregnant women should undergo ophthalmological examinations at 6, 10-14 and 32-36 weeks of pregnancy.
Diagnostic eye exams are mandatory before microsurgical interventions. They help to identify possible contraindications, determine the individual parameters of the operation and to predict its result.
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