What is Ciba contact lenses?
What is Ciba contact lenses?
A soft contact lens for astigmatism designed to be worn for one- to two-week replacement. The unique 3-in-1 technology, blends three colors into one to create the subtle, natural depth of beautiful eyes. Available in blue, honey, green and gray.
How do I identify toric lenses?
Soft toric lenses will usually have markings on the lens at a specific reference point so the degree of rotation can be assessed when the lens is on the eye. The markings may be in the form of laser trace, scribe lines (Fig. 9.5), engraved dots or ink dots (Fig. 9.6).
Why do my contacts have numbers on them?
This is a lens inversion marking used by Johnson & Johnson for their Acuvue series of lenses. If you see 123 on your lens, it is NOT inside out, and is oriented correctly. If the numbers appear as in the “incorrect” photo below, it is inside out, and you need to flip it the other way.
How do you read a prescription for astigmatism contacts?
If you do have astigmatism, a value will be entered in this box along with an Axis. E.g. Left eye: -2.25, Right eye: -2.25. Axis: Measured in degrees, this value is normally between 0-180 and is the direction where an extra power is added in the contact lens to correct your astigmatism.
Is Alcon and CIBA Vision the same?
Alcon and CIBA VISION are now unified under the Alcon brand to offer comprehensive eye health and vision care portfolio of products. CIBA VISION® contact lenses’ popularity has increased over time, including: O2 Optix, Freshlook Toric and their Air Optix brand.
What do the lines on toric lenses mean?
What is the reason for the lines on toric contacts? These lines are an orientation marking and the purpose is to identify where the lens is sitting on the eye. For the practitioner, when checking the fit of the lens, the small line on the contact lens should be sitting at the bottom of the eye by the lower lid.
Do contact lenses have serial numbers?
Contacts have tiny serial numbers imprinted on the lens.
How do I know which way my contacts go?
While squeezing, look at the edge of the lens. If it’s pointing upwards, or if the edges appear to meet, then the lens is the correct way around. If it bends outwards towards your finger and thumb, then the lens is inside out.
What does CYL mean in eye prescription?
Cylinder (CYL) – This indicates the amount of lens power for astigmatism and represents the difference in the greatest and weakest powers of the eye, usually separated by 90 degrees.
How do I choose the right toric contact lenses?
Choosing toric contact lenses. Toric contacts, like all contact lenses, need to be prescribed by your doctor, who can choose the lenses that are right for your vision, and fit them for your eyes. Talk to your eye doctor if you think you need contact lenses for astigmatism or other vision problems.
What does cibab753 mean on my Alcon lenses?
Air Optix for Astigmatism (Alcon) lenses have markings in the 11 o’clock to the 1 o’clock area of the lens. For example, a –3.00 –1.25 x 180 lens features the code CIBAB753. “CIBA” identifies the lens manufacturer (now Alcon).
What are the best toric lenses for astigmatism?
The Air Optix for Astigmatism (Ciba Vision [Ciba]), Biofinity Toric (CooperVision), Avaira Toric (CooperVision), and PureVision Toric (B+L) contact lenses are all stabilized with a variation of the prism-ballasted design.
What is the difference between ballasting and toric lenses?
Ballasting, where the lens is a little thicker or heavier This means that fitting the contact lenses to your eyes is even more important than usual. Toric contact lenses have a middle axis, like the Earth’s equator, that keeps your line of vision clear. If your lenses don’t fit well and slip, so does the visual clarity.
