VISION is the only clinic in Bulgaria that uses a revolutionary method to correct vision without surgical intervention. These are orthokeratology lenses (Ortho-K) — rigid contact lenses made to order for each individual patient. The lenses are tailored to the parameters of the cornea and the visual needs of the patient.
Orthokeratology lenses work by reshaping the cornea to correct vision defects during sleep, providing perfect vision throughout the day. The night lenses are worn only at night — the patient sleeps with them and removes them in the morning. During the day, there’s no need to wear glasses or contact lenses.
The reshaping process occurs gradually throughout the night. Ortho-K lenses apply gentle pressure to the cornea, which is part of the eye’s anatomical structure responsible for vision. It is recommended to sleep with the lenses for at least 6 hours.
Satisfactory results can be achieved in about 10 days for patients with myopia (nearsightedness) and 15 days for patients with hyperopia (farsightedness). Since this method is reversible, the night lenses must be worn every night to maintain consistent vision quality. If their use is stopped, the cornea will gradually return to its original shape, and the vision defects (diopters) will reappear within a few days.
Ortho-K lenses are suitable for patients with myopia, hyperopia, astigmatism, and presbyopia, provided the cornea has a regular shape. In children and adolescents under 20, the lenses can be adjusted to slow the progression of myopia.
Ortho-K lenses are especially suitable for people who work under artificial lighting, spend excessive time in front of a computer, or simply prefer not to wear glasses. They are particularly effective for patients with dry eyes and for those working in dusty or polluted environments. Ortho-K lenses are a modern and proven method of vision correction for both children and active adults.

