Risk of serious eye problems i e corneal ulcer is greater for extended wear.
Air optix toric markings.
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For daily wear or extended wear up to 6 nights for near far sightedness presbyopia and or astigmatism.
Air optix and o2 optix inversion markings.
3 marks at 5 6 and 7 30 degrees apart.
Currently three silicone hydrogel toric lenses are available purevision toric acuvue advance for astigmatism and air optix toric ciba vision with more due in the near future.
Markings on soflens toric for astigmatism.
Air optix for astigmatism alcon lenses have markings in the 11 o clock to the 1 o clock area of the lens.
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Virtually all soft toric lenses have one or more orientation markings that are visible through a slit lamp.
Ciba identifies the lens manufacturer now alcon.
For example a 3 00 1 25 x 180 lens features the code cibab753.
3 marks at 5 6 and 7 30 degrees apart markings on purevision toric for astigmatism.
Important information for air optix plus hydraglyde multifocal lotrafilcon b contact lenses.
Air optix for astigmatism contact lenses can provide clear vision and consistent comfort for your patients.
Ciba 2 numbers letters.