Our eyes represent an optical system through which we view the world around us. As the most sophisticated camera, they consist of several lenses, or even two: the cornea (the clear covering of the front of the eye) and the lens inside our eyes. There are different vision defects and there will be relevant applicable methods of their correction.
Glasses: they are composed of two main elements – lenses and frames that holding them in front of our eyes. The lenses must match the features of our face and certain geometrical parameters, such as center distance, vertex distance, angle, etc.
Advantages of vision correction using glasses:
- Creating an image of smart person;
- Wide availability of different frames in all possible price categories;
- Wide availability of lenses, each designed to correct a specific defect;
- The possibility of combining the optical and sun lenses;
- Ease of use and maintenance.
Disadvantages of vision correction with glasses:
- Incorrect spatial perception and narrowing of the field of view;
- Evidence of “physical disability” to others;
- Unacceptable change in appearance;
- Risk of injury to the face and eyes in some situations;
- Restrictions on the choice of leisure activities and sports.
Contact lenses are worn directly on the cornea of the eye and form with it a single optical system similar to tightly coupled lenses in the lens of the camera.
Advantages of vision correction using contact lenses:
- No destruction of spatial perception and normal viewing angle;
- Invisible to others;
- Ability to change the color of eyes;
- No restrictions on the choice of activities and sports;
Disadvantages of vision correction using contact lenses:
- Direct contact with the eyes and the related risk;
- A need for adherence to strict hygiene and wear;
- Frequent money expenditure on new lenses and care products;
- Inconvenience in certain circumstances;
- Limitation of usage with certain diseases (colds, allergies, etc.)
Surgical vision correction is done either by a special diamond scalpel, which makes incisions in the cornea of the eye or with a laser, which gives the cornea a new form. Both interventions provide for a change in the optical power of the cornea.
The advantages of surgical and laser vision correction:
- Reducing dependence on optical means of vision correction;
- Quick and painless procedure of correction;
- A short recovery period.
Disadvantages of surgical and laser vision correction:
- A risk of serious and irreversible complications to the eyes;
- A likelihood of further deterioration of vision;
- Set of contraindications.
As you can see, there is no ideal method of vision correction, therefore try to find a balance between life and work and pay attention to eye health.