Abstract: the examination of eye adjustment and motor function is binocular visual function examination, including NRA, PRA, BCC, cohesion and dispersion ability measurement and so on. Internationally, “binocular visual function examination” has become an important part of optometry., Everyone has the experience of matching glasses in optical shops. Many optical shops are all over the streets, and the matching process is roughly the same: 1 Visual acuity chart, 2 Computer optometry, 3 Audition, 4 Lens and frame selection, 5 Grinding glasses, but can this fitting process really produce a pair of glasses with accurate degree and suitable for your eyes?, Let’s take a look at the medical optometry matching process:
everyone has the experience of matching glasses in optical shops. Many optical shops are all over the streets, and the matching process is roughly the same:
1 Visual acuity chart examination visual acuity
2 Computer optometry
4 Select lens and frame
5 Grinding glasses
. However, can such matching process really produce a pair of glasses with accurate degree and suitable for your eyes?
let’s take a look at the medical optometry matching process:
it is important to check the binocular visual function.
the examination for eye adjustment and motor function is the binocular visual function examination, including NRA, PRA, BCC, aggregation and dispersion ability measurement, etc. Internationally, “binocular visual function examination” has become an important part of optometry. A sample survey of
shows that 469 of 500 ametropic children have abnormal binocular visual function, accounting for 93.8%, which can not be detected scientifically by traditional optometry alone. Without the glasses prescription combined with the results of binocular visual function examination, patients are easy to feel fatigue, dizziness, inattention, etc. Through binocular visual function examination, we can accurately find the problems and make analysis and diagnosis according to the specific situation of the eyes. In Tongren ophthalmology and Aier Ophthalmology, six children with 100 degree myopia may have six different ways of diagnosis and treatment. In this way, we can better help patients with visual problems improve visual quality and delay the growth rate of myopia.
let’s take a look at the professional matching process
1 Intraocular pressure test
check the intraocular pressure data, and judge whether there is the possibility of fundus diseases according to the intraocular pressure.
2. When the
teenagers are equipped with glasses, the length of the patient’s ocular axis needs to be measured, and the length of the ocular axis should be compared with the diopter to prove the accuracy of the detection of ametropia.
3. Computer optometry
the function of computer optometry is to check the visual acuity level and determine the diopter. If it is teenagers and children who have optometry for the first time, mydriasis is also required.
4. Comprehensive optometry
the function of comprehensive optometry is to check “the best corrected visual acuity of left and right eyes” for patients, including:
1 Measure pupil distance
2 Determine the primary eye
3 The best corrected visual acuity of left and right eyes
4 Binocular balance
5 Binocular visual function test
5 During the
mirror audition, the optometrist needs to allocate the appropriate lens degree for the patient, and the patient wears the trial lens for walking and other activities to determine the comfort of the lens degree.
7 for lens and frame Glasses making
making a pair of qualified glasses requires 9 processes:
1 Check whether the actual degree of the original lens is consistent with the outer packaging, and check whether there are scratches.
2. Check whether the model and degree of the corresponding lens and frame are correct according to the glasses prescription.
3. Check the frame for paint loss and scan the frame.
4. Use a focimeter to determine the optical center for the lens.
5. Use the center locator to fix the lens.
6. Set parameters for the automatic edging machine to grind the lens.
7. Install the lens for the frame.
8. Quality inspection
after the lens is installed, another optician needs to conduct secondary inspection on the completed glasses. The inspection contents include: whether the optical center of the double lens is consistent with the pupillary distance; Whether the lens power is consistent with the prescription issued by the optometrist; Whether the axial position of the lens is accurate, etc. Any non-conforming data will lead to the direct cancellation of this pair of glasses, and all processes will start again until qualified glasses are made.
9. Patients with
can try them on in the hospital for a period of time. If they feel uncomfortable, they can submit them to the mirror maker for adjustment again.
experts said that in order to ensure the quality of customized glasses, strict supervision and standardization should be carried out in all links and tested one by one according to the standards. Don’t be afraid of trouble in scientific optometry. You must go to a regular eye hospital. After being checked and diagnosed by an ophthalmologist, the optometrist and optometrist will give reasonable treatment suggestions and correct prescription for glasses. The quality of the frame and lens of glasses should also be guaranteed.
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