A toric IOL replaces the lens while correcting corneal astigmatism. Its power and axis are calculated before surgery, and its position is checked after implantation.
Cataract with confirmed regular corneal astigmatism likely to affect postoperative vision. Cataract with stable, repeatable keratometry/topography measurements. Astigmatism after previous refractive surgery, only after expanded diagnostic evaluation.
Patients seeking to reduce residual refractive cylinder and distance-spectacle dependence.
Patients suitable for monofocal, enhanced-monofocal, EDOF or trifocal optics who also need a toric component.
Cases where postoperative cylindrical spectacle correction would be undesirable or inconvenient.
Selected post-keratoplasty or otherwise altered corneas only when astigmatism is sufficiently regular and the surgeon considers toric correction predictable.
A toric IOL does not guarantee complete elimination of astigmatism or freedom from glasses. Residual cylinder may result from measurement error, surgically induced astigmatism, IOL rotation, posterior corneal features or healing.
The general risks of intraocular surgery remain: infection, inflammation, raised intraocular pressure, corneal or macular oedema, posterior capsule rupture, IOL displacement, secondary posterior capsule opacification and retinal complications.
At consultation, tell the doctor when and how astigmatism was diagnosed, whether you have worn cylindrical spectacles or toric contact lenses, and about LASIK/PRK/SMILE, keratotomy, cross-linking, keratoplasty or corneal injury. Regularity of astigmatism and repeatability of measurements must be assessed before the final toric IOL choice.
With an unstable tear film or marked ocular-surface disease, keratometry may need repeating after treatment.
Seek urgent care for sudden visual loss, pain, marked redness, flashes, a curtain or a sudden increase in floaters.
A toric IOL does not guarantee zero astigmatism or spectacle independence.
Book a consultation
Cataract diagnostics and assessment of visual potential.
Keratometry and, when needed, corneal topography/tomography to assess magnitude, axis and regularity of astigmatism.
IOL power, toric cylinder and implantation axis are calculated.
The doctor selects the IOL optical class according to eye health and visual needs.
Phacoemulsification and IOL implantation with accurate alignment of toric marks to the planned axis.
Refraction, IOL position, pressure and anterior or posterior eye assessment when indicated.
Corneal measurements help determine whether a toric IOL is needed to correct regular astigmatism.
A toric IOL allows lens replacement to be combined with correction of regular corneal astigmatism.
Biometry helps calculate artificial lens power using the eye's individual measurements.
The toric IOL axis is planned from corneal measurements so its optics align with the astigmatism.
Optical-class prices start from the lowest listed model price per lens. Surgery is charged separately.
Book cataract diagnostics and a KazRIED cataract-surgeon consultation. The physician will evaluate corneal astigmatism, perform the required measurements, calculate the IOL and explain which toric optical class fits your visual goals.
A team of experienced doctors across specialties.
Candidate of Medical Sciences, Associate Professor; Highest-category ophthalmologist
Candidate of Medical Sciences; Highest-category ophthalmologist
Candidate of Medical Sciences; Highest-category ophthalmologist
Candidate of Medical Sciences; Highest-category ophthalmologist
Doctor of Philosophy (PhD)
Highest-category ophthalmologist
Highest-category ophthalmologist
Highest-category ophthalmologist
Highest-category ophthalmologist
First-category ophthalmologist
A toric intraocular lens (IOL) has different optical powers in different meridians and must be aligned with the calculated axis.
Four steps are important:
Rotation of a toric IOL after implantation reduces its corrective effect, so the clinician monitors its position.
A toric IOL is best suited to correcting regular corneal astigmatism.
A markedly irregular cornea, keratoconus, corneal scarring, or a history of certain operations requires an individualized assessment. In some cases, a different correction strategy may be needed.
After surgery , toric-IOL position and residual refraction are assessed at follow-up. If vision is below expectations, the surgeon checks the cornea, IOL axis, macula and other possible causes. In uncommon cases of clinically significant rotation, IOL repositioning may be considered. Spectacles or additional correction can still be required after a correctly positioned toric IOL.
A toric IOL is not a separate “astigmatism operation”; it is the optical component of lens surgery. It is considered when preoperative measurements show clinically meaningful regular corneal astigmatism and the surgeon expects intraocular cylinder correction to improve postoperative refraction. The optimal model is selected after diagnostics, not from a universal brand ranking.
Kazakhstan’s first specialized ophthalmology institute, operating since 1933.
Modern diagnostics and surgery using world-class equipment.
Leading ophthalmologists in Kazakhstan, scientists and experienced surgeons.
More than 30,000 operations and around 270,000 consultations annually.
Kazakhstan’s first specialized ophthalmology institute, operating since 1933.
Modern diagnostics and surgery using world-class equipment.
Leading ophthalmologists in Kazakhstan, scientists and experienced surgeons.
More than 30,000 operations and around 270,000 consultations annually.
Kazakhstan’s first specialized ophthalmology institute, operating since 1933.
Modern diagnostics and surgery using world-class equipment.
Leading ophthalmologists in Kazakhstan, scientists and experienced surgeons.
More than 30,000 operations and around 270,000 consultations annually.
