What are contacts with a toric lens?
A contact lens with a certain form is called a toric lens. Think of a slice of the side of a beach ball when imagining the spherical surface of standard contact lenses. For those with astigmatism, there is a unique form of contact lens called a toric lens.
Due to an unevenly formed cornea, astigmatism is an eye ailment that affects both long and short-sightedness.
In comparison, a torus is a geometric form that resembles a donut. A slice of the side of this doughnut demonstrates how a toric lens is made.
Different refractive, or focusing, powers are produced in the vertical and horizontal orientations by the toric form of contact lenses. As you go around the lens, the refractive strength progressively increases or decreases.
Three varieties of toric lenses exist:
Other visual adjustments are also addressed by toric contact lenses, which are available in all wear schedules. You may get toric daily lenses, as well as various disposable toric lenses, and even coloured toric lenses.
Both soft and rigid gas permeable (RGP), or hard, lenses are used to create toric contacts. RGP lenses can be more stable, but they can also take longer to adjust to initially and be drier and more delicate. Although soft toric contact lenses are more pleasant and manageable, they require special attention during fitting to remain in place.
Talk to your eye doctor about getting toric contact lenses for astigmatism, as you should with any contact lenses. She can assist you in determining the best fit and correction for your lifestyle as well as your eyes.
Soft lenses : The most popular type of toric contact lens is one constructed of hydrogel called soft lenses. Soft lenses have a higher likelihood of infection but are more comfortable to wear and simpler to adjust;
Rigid lenses : It commonly referred as as gas permeable contact lenses, are more harder to adjust but are far more robust;
Hybrid lenses : These are a rare type of toric contact lens that balances comfort and durability by combining a soft centre with a hard outer component.
How do contact lenses for toric eyes work?
Toric contact lenses feature a complicated form that compensates for an astigmatic person's cornea's irregular shape. The primary distinction between this and a typical contact lens—which is spherical—is this.
Because of the toric lens's asymmetrical form, proper fitting is crucial. The wearer's eyesight is unaffected if a normal contact lens rotates inside the eye since it is symmetrical on both sides. In contrast, a toric lens has parts with various refractive powers. The parts of the cornea being repaired must be appropriately aligned with these regions. Vision might become hazy as a result of the lens rotating inside the eye.
For astigmatism, use contact lenses
When your cornea or lens has a different curve than usual, this condition is known as regular astigmatism, corneal astigmatism, or lenticular astigmatism, and it can be corrected using toric contact lenses.
The cornea or lens in these situations is curved, causing your eye's refraction to vary between the vertical and horizontal planes. Vision becomes hazy and it becomes difficult to focus on small details. Vertical lines can occasionally appear to be tilted.
Toric contact lenses can offer various refractive strengths in both horizontal and vertical orientations, which specifically tackles the astigmatism-causing quirk.
Selecting Toric Lenses
Like all other types of contact lenses, toric lenses must be prescribed by your doctor, who can also properly fit and select the lenses for your eyes. If you believe you require contact lenses for astigmatism or other vision issues, consult your eye doctor.
In the meantime, take into account the following:
Fitting is crucial for toric contacts in particular.
Toric contact lenses must remain on your eye in the proper orientation because they have a certain orientation. Toric contact lens designers incorporate characteristics that aid in the lenses' stability, such as:
- Thick-thin zones
- Lens truncation, where a little portion of the lens is removed,
- Ballasting, where a small amount of the lens is made heavier or thicker
This makes it even more crucial than usual to properly fit the contact lenses to your eyes. Toric contact lenses maintain a clear line of vision by having a central axis that is similar to the equator of the earth. Your vision will be less clear if your lenses slide around and don't fit properly.
What advantages do toric contact lenses offer?
Because they are made expressly to address the issue, toric contact lenses are frequently the best option for contact lens wearers with astigmatism. Different refractive, or focusing, powers are produced by the unique form of a toric lens, and these powers can be used to treat either lenticular or corneal astigmatism.
The thicker zone on toric contacts prevents rotation while they are in your eyes. Additionally, it makes it easier to align the lenses consistently across the board, improving visual acuity.
Getting an accurate fit is crucial because toric contact lenses must be applied to your eye in a certain manner. To maintain your line of vision clear, toric glasses have a central axis that rounds the globe similarly to the equator. Your eyesight won't be much improved by lenses if they don't fit properly.
We can assist if you require contact lenses to help with astigmatism correction. Toric lens fits are available at Smart Eye Care, and they can also advise you on the best toric lens option for your way of living. The wear schedules for toric lenses range from daily to disposable and beyond, and they are available as soft or hard lenses.