با وجود پیدایش روشهای جدید اصلاح ضعیفی های چشم مانند انواع لنزها و جراحی ها استفاده از عینک هنوز از جایگاه ویژه ای در اصلاح عیوب انکساری بر خوردار می باشد و همچنان اولین ، بهترین ، سالمترین ، کم عوارض ترین و ارزان ترین گزینه برای اصلاح عیوب انکساری چشم عینک می باشد . Fortunately, unlike in the past, with the help of technology and tremendous scientific advances, a wide range of frames and glasses lenses are available with suitable and excellent bags. In buying glasses, three very important points that most people usually do not pay attention to are choosing the type of frame, choosing the lens (slang term for glasses) and making the glasses.
Choosing eyeglass lenses
In terms of choosing eyeglass lenses, it should be said that currently a wide range of eyeglass lenses are designed and available in a customized way for different people with different jobs and vision needs. The variety and progress is such that some eyeglass lenses are even designed for special jobs and different working distances. At present, various types of eyeglass lenses are available in the form of single focus, bifocal and gradual, with different thickness and refractive index and various coatings. Single focus lenses are for those who only have a problem with a distance or close working distance. Bifocal and progressive lenses are for people who have problems with far and near distance and do not want to have two separate glasses and tend to use one glasses to see far and near. Lenses with additional and specialized coatings are usually designed for people who are bothered by ambient light, for example, people who use electronic devices a lot can use block control lenses for more comfort or people who have problems driving, especially at night, can use colored anti-reflective coated lenses, or people who are sensitive to sunlight can use photochromic or photochromic anti-reflective lenses, or standard UV400 and Polaroid sunglasses. It should be noted that choosing the type of eyeglass lens based on the number of focal points, gender, refractive index, eyeglass score and coating should be determined based on the person's vision needs and by the optometrist. Unfortunately, there are cheap and low-quality lenses in the market, so don't look for cheap and low-quality lenses when choosing your glasses and pay attention to the health of your eyes.
Choosing a frame (eyeglass frame)
Today, eyeglass frames are very diverse in terms of material, shape and type. In terms of material, eyeglass frames are available in metal, rubber, or a combination of metal and rubber. Compared to metal frames, rubber frames are usually lighter and more comfortable, but instead, metal frames are more durable. In terms of shape, usually all kinds of frames are available in square, oval, round, and polygonal shapes. In terms of frame type, there are also types of half-frame, full-frame, and frameless frames with pads. One piece and two pieces are available.
Important points that must be taken into account when choosing a frame are the person's vision needs, glasses score, age, facial skin sensitivity, face color, face shape, and frame inclination on the face. Therefore, in choosing the type of frame, it is better to use the optometrist's advice according to the above factors, so as not to suffer from problems caused by choosing an inappropriate frame after it is made. Choosing an eyeglass frame is very important, especially for children under 9 years old, due to the possibility of eye laziness. It is because children who are being treated due to lazy eyes, if they choose an inappropriate eyeglass frame, the treatment of their laziness will suffer.
Manufacturing of glasses
To have a good pair of glasses that can provide clear and comfortable vision in addition to meeting vision needs and correcting vision problems, there are three important factors. The first factor is the accurate and correct prescription of the eyeglass score, which is done by an optometrist or an ophthalmologist at the expense of time and money. The second factor is the selection of standard and good lenses and eyeglass frames, which should be done with the guidance and advice of an optometrist and the recommendations on the prescription. Well, up to this point, it is assumed that the glasses score is accurate and the person has chosen a suitable and standard and possibly expensive lens and frame. Now it is the turn of the third factor, which is very important, and that is the construction of the glasses, that is, the placement of the glasses lenses in compliance with all the scientific and standard points that can create the best and most comfortable vision for the person. The points that should be paid special attention to in the manufacture of glasses are: precise adjustment of lens foci according to the precise distance of the pupils of the eyes, precise adjustment of the astigmatism angle in the astigmatism scores. Compliance with these points becomes more important especially when the eye score is above 2 or the eye astigmatism score is in certain axes such as vertical axes around 90 degrees or oblique axes such as around 60 and 120 degrees. Failure to comply with any of the points: accurate prescription, improper selection of lenses, improper selection of eyeglass frames and unprincipled construction of glasses can cause discomfort such as: blurred vision, dizziness, headache, double vision, occurrence of eye deviations and in one A person's speech is not satisfied with his own glasses.
Conclusion
Comparison of glasses with other methods
Among the advantages of glasses compared to lenses and surgery, we can mention these things: 1- Inexpensiveness, 2- Comfortable and painless use (using glasses does not require special training) 3- In most cases, refractive errors can be completely corrected with glasses, that is, a person can fully see by using glasses, which may not be possible with the use of some lenses and surgical procedures. 4- The use of Eyeglasses do not cause eye complications such as infection and inflammation. 5- The use of glasses does not have any age restrictions, if lenses and surgery cannot be used at any age. 6- Low degrees of refractive errors can only be corrected with glasses, and the use of lenses and surgery is not recommended at all in these cases.
Disadvantages of glasses compared to lenses and surgery are: 1- Creation of color and spherical error due to the thickness of the edges of the glasses, especially in high grades and cheap lenses. Price and poor quality 2- Creation of restrictions in the field of vision 3- Restrictions in performing sports activities such as football 4- Issues related to the beauty and the stimulating effect of glasses on the skin in high-quality frames. Despite all the advantages and disadvantages of using glasses, it should be said that if a person's vision can be completely corrected with glasses, using this method is highly preferable to lenses and surgery, except in special cases where a person's vision cannot be corrected with glasses and we have to use other methods.
If you have any questions and more explanations about any of the methods of correcting weak eyes, you can visit the optometry center and get a specialized and detailed examination from our advice in this Benefit from the context.
