Anomalies of refraction correction

Anomalies of refraction correction

Refractive errors are commonly manifested by blurred vision in which the eye is unable to focus the image.

There are 4 main types of refractive errors:

  1. Myopia (nearsightedness) – is a difficulty in seeing distant objects;
  2. Hyperopia (farsightedness) – is a difficulty seeing close objects;
  3. Astigmatism – is distorted vision due to irregular curvature of the cornea;
  4. Presbyopia leads to difficulties when reading or examining objects at arm's length. It differs from other disorders, which is associated with aging and it happens almost with everybody.

Intraocular (or phakic) lens is a new technology of vision correction in high degrees of refractive errors. For example, in high myopia (-20D), hyperopia (up to 10D) and astigmatism (up to 6D). The technology consists in implanting a biocompatible contact lens into the eye by a microsurgical method which allows to achieve a clear near and distance vision almost immediately after a surgery. Furthermore, implantation of intraocular lenses permanently eliminates wearing glasses or removable contact lenses.

 

Phakic lenses of the Swiss brand STAAR ICL are represented by the following models:

VICH Spherical for Hyperopic (above +2,75D)

VICM Spherical for Myopic

VTICH Toric for Hyperopic (above +2,75D)

VTICM Toric for Myopic

VICMO Spherical for Myopic (above – 6,0D)

VTICMO Toric for Myopic (above – 6,0D)