Toric lenses are intraocular lenses that correct astigmatism during cataract or lens replacement surgery, helping provide clearer, more focused vision without strong cylindrical glasses.
How toric implants correct astigmatism
Astigmatism means the eye curves more in one direction, like a rugby ball, causing blur. Toric lenses have built in cylinder power aligned to the steepest curve to neutralise this uneven focusing.
- Require precise measurements of corneal shape before surgery
- Marked and positioned at a specific angle inside the eye
- Can be combined with monofocal, multifocal, or EDOF optics
- Reduce dependence on glasses, especially for distance
Results and possible fine tuning
Most people enjoy sharper vision and thinner, simpler glasses if any are still needed. Rarely, lens rotation or residual astigmatism may require laser enhancement, spectacles, or in some cases repositioning of the implant.
- Regular post operative checks ensure the lens remains correctly aligned
- Discuss hobbies like sport and night driving when planning surgery
- Dry eye management helps keep measurements accurate and vision stable
- Even with toric implants, routine eye tests remain important over time
