Overnight contact lens
The Ortho-K lens for spherical applications up to -4.50
The Ortho-K contact lenses are worn during overnight in order to reduce the present ametropia. Ortho-K is an optically technical applications of RGP contact lenses with the aim of slowing progression and temporarily reducing myopia and astigmatism.
Young progressive myopia:
- myopia up to ± power -4.00
- corneal astigmatism according to the rule up to cylinder -1.50
- cornea astigmatism against the rule until cylinder -0.75
Professional groups such as pilots, policemen and firefighters (some review bodies exclude persons who have undergone refractive surgery or Ortho-K).
Depending on the ametropia to be corrected, the customer generally needs 10 to 14 days to achieve an uncorrected good vision throughout the day. To achieve this, the contact lenses will need to be worn at night for 6-8 hours.