Monofocal intraocular lenses (IOLs)
A monofocal IOL has one principal optical focus.
Learn moreService options
Toric intraocular lenses (IOLs)
A toric IOL replaces the lens while correcting corneal astigmatism.
Learn moreMultifocal intraocular lenses (IOLs)
A multifocal IOL provides several optical foci to reduce dependence on glasses at different distances.
Learn more
About the service
IOL selection involves assessing eye health, biometry and lens-power calculation. The doctor discusses desired vision at different distances and an appropriate optical option.
Who the service is for
Cataract and lens condition
Patients with cataract who are preparing for phacoemulsification and need IOL power calculation.
Laser correction for astigmatism
Patients with regular corneal astigmatism who may benefit from a toric IOL.
Optical correction
People prioritising high-quality distance vision and who accept reading spectacles if needed. Patients seeking less spectacle dependence at intermediate or multiple distances and willing to discuss EDOF, multifocal or trifocal designs.
Intraocular-lens selection
Patients after LASIK, PRK, SMILE, radial keratotomy or other corneal surgery where IOL calculations require additional care.
Macular region
Patients with retinal, macular, optic-nerve or corneal disease where the range of suitable optical designs must be determined first.
Planning for the second eye
Patients planning second-eye surgery when the target can be refined using the first-eye result.
Realistic expectations
No IOL fully reproduces a young natural crystalline lens or guarantees freedom from glasses. Premium optical designs may cause halos, glare and light scatter and require neuroadaptation. Macular or optic nerve disease, marked corneal changes, irregular astigmatism, an unstable tear film or other disorders may limit the range of suitable lenses.
Astigmatism
Toric IOLs require accurate astigmatism assessment and axis alignment; postoperative rotation can reduce correction.
Corneal suitability for correction
IOL calculations are more difficult after prior corneal refractive surgery or radial keratotomy, and residual refractive error is less predictable.
Biometry and the optical target
Bring previous examination results and information about all eye operations, particularly LASIK, Femto LASIK, PRK, TransPRK, SMILE, keratotomy, vitrectomy and retinal surgery. Tell the doctor how important night driving, computer work, small print, sport, occupational visual demands and reducing dependence on glasses are to you.
Contact lenses
If you wear contact lenses, confirm with KazRIED how long they should be discontinued before keratometry and biometry because the interval depends on lens type and corneal condition.
When urgent care is needed
After lens surgery, urgent review is required for sudden visual loss, severe pain, marked redness, flashes, a curtain-like shadow or rapidly increasing floaters.
Limitations and safety
No IOL fully recreates the accommodation of a young natural lens or guarantees spectacle independence.
Book a consultation
Stages
Stage 1
Visual needs
The surgeon clarifies priority distances and activities and the patient’s willingness to use spectacles.
Stage 2
Ophthalmic examination
Cataract is confirmed and the cornea, anterior segment, intraocular pressure, retina and optic nerve are evaluated.
Stage 3
Refraction and keratometry.
Baseline refraction and corneal astigmatism are measured for calculation and toric planning.
Stage 4
Biometry and IOL power calculation.
IOL Master / ARGOS or ultrasound calculation is used as indicated; the price list includes a separate multifocal-IOL calculation.
Stage 5
Additional tests
Corneal topography/tomography, macular OCT, ultrasound or other tests are added when clinically relevant.
Stage 6
Optical option selection
Monofocal, toric, enhanced monofocal, EDOF and multifocal/trifocal options are compared against ocular limitations and goals.
Stage 7
Final preoperative check
The surgeon checks the selected model, lens power, correct eye, refractive target and surgical plan.
Service benefits
Selection for everyday needs
IOL selection takes into account the distance at which seeing without glasses matters most to the patient.
Calculation of lens power
Biometry helps calculate artificial lens power using the eye's individual measurements.
Consideration of corneal astigmatism
Corneal measurements help determine whether a toric IOL is needed to correct regular astigmatism.
Compatibility with eye health
Optics are selected according to retinal, corneal and optic nerve health, with the model's benefits and limitations discussed.
A. Comparison of IOL optical types
IOL type
Standard monofocal
Enhanced monofocal
Toric monofocal
EDOF
Multifocal / trifocal
Toric EDOF / multifocal
Main range
One principal focus
Distance + some intermediate
One principal focus + astigmatism correction
Distance + intermediate
Distance + intermediate + near depending on design
Multiple distances + astigmatism
Key benefit
Predictable basic optics and generally fewer complex photic phenomena
More functional intermediate vision than a standard monofocal
Reduces suitable regular corneal astigmatism
Extended range with generally fewer dysphotopsias than diffractive multifocal optics
Greatest potential reduction in spectacle dependence across several distances
Combines regular astigmatism correction with extended range
Trade-offs / limitations
Spectacles often required for another distance
Reading glasses often still needed; effect varies by model
Requires accurate measurements and rotational stability; not for irregular astigmatism
Reading glasses often needed for fine near work; photic phenomena can still occur
More halos/glare and potential contrast loss; careful selection required
Highest demands on measurements, cornea, macula, axis stability and expectations
Who may discuss it
Priority on one-distance quality or ocular disease limiting premium optics
Computer/dashboard work and modest range extension
Regular corneal astigmatism
Distance and intermediate visual priorities
Healthy ocular optics and strong desire for spectacle independence
Astigmatism plus broader-range goals in a suitable eye
Standard monofocal
Main range
Key benefit
Trade-offs / limitations
Who may discuss it
One principal focus
Predictable basic optics and generally fewer complex photic phenomena
Spectacles often required for another distance
Priority on one-distance quality or ocular disease limiting premium optics
Distance + some intermediate
More functional intermediate vision than a standard monofocal
Reading glasses often still needed; effect varies by model
Computer/dashboard work and modest range extension
One principal focus + astigmatism correction
Reduces suitable regular corneal astigmatism
Requires accurate measurements and rotational stability; not for irregular astigmatism
Regular corneal astigmatism
Distance + intermediate
Extended range with generally fewer dysphotopsias than diffractive multifocal optics
Reading glasses often needed for fine near work; photic phenomena can still occur
Distance and intermediate visual priorities
Distance + intermediate + near depending on design
Greatest potential reduction in spectacle dependence across several distances
More halos/glare and potential contrast loss; careful selection required
Healthy ocular optics and strong desire for spectacle independence
Multiple distances + astigmatism
Combines regular astigmatism correction with extended range
Highest demands on measurements, cornea, macula, axis stability and expectations
Astigmatism plus broader-range goals in a suitable eye
B. Selection by patient goal
Patient goal
“I want the clearest distance vision possible”
“I work on a computer all day”
“I want to read without glasses”
“I have astigmatism”
“I had LASIK/PRK/SMILE”
“I have retinal disease”
What is commonly discussed
Monofocal or toric monofocal IOL
Enhanced monofocal or EDOF in suitable eyes
Multifocal/trifocal optics or another refractive-target strategy
Toric IOL for suitable regular corneal astigmatism
Individualised calculation and cautious optical selection
Often a more conservative optical strategy after visual-potential assessment
What to check first
Keratometry, biometry, astigmatism and macular status
Cornea, ocular surface, macula and near-vision expectations
Macula, optic nerve, cornea, night-vision sensitivity and adaptation expectations
Topography/tomography, amount and axis of astigmatism, posterior cornea
Prior surgery data, keratometry/tomography and designated calculation methods
Macular OCT, fundus assessment and functional prognosis
What must not be promised
Guaranteed 20/20 vision or no spectacles
Complete spectacle independence at all distances
No halos or glare
Complete correction of irregular astigmatism
Same predictability as an untreated cornea
That a premium IOL can compensate for retinal disease
“I want the clearest distance vision possible”
What is commonly discussed
What to check first
What must not be promised
Monofocal or toric monofocal IOL
Keratometry, biometry, astigmatism and macular status
Guaranteed 20/20 vision or no spectacles
Enhanced monofocal or EDOF in suitable eyes
Cornea, ocular surface, macula and near-vision expectations
Complete spectacle independence at all distances
Multifocal/trifocal optics or another refractive-target strategy
Macula, optic nerve, cornea, night-vision sensitivity and adaptation expectations
No halos or glare
Toric IOL for suitable regular corneal astigmatism
Topography/tomography, amount and axis of astigmatism, posterior cornea
Complete correction of irregular astigmatism
Individualised calculation and cautious optical selection
Prior surgery data, keratometry/tomography and designated calculation methods
Same predictability as an untreated cornea
Often a more conservative optical strategy after visual-potential assessment
Macular OCT, fundus assessment and functional prognosis
That a premium IOL can compensate for retinal disease
C. Comparison of measurements and calculations
Test / calculation
Ultrasound IOL calculation, contact
IOL Master / ARGOS calculation
A/B scan + multifocal-IOL calculation
Keratometry
Pentacam / corneal tomography
Macular OCT: Cirrus-HD / Spectralis
What it provides
Ultrasound measurements for IOL calculation
Non-contact optical biometry and IOL power calculation
Additional calculation under a separate tariff
Corneal curvature measurement and basic astigmatism assessment
Corneal shape map, irregularity detection and deeper astigmatism assessment
Assessment of macular structures that may limit visual quality
When especially useful
When optical biometry is unavailable or clinically insufficient
Routine preoperative planning when optical acquisition is adequate
When a multifocal/premium strategy is planned and prescribed
Nearly all IOL calculations, especially toric planning
Toric/premium IOLs, irregular cornea, prior refractive surgery
Before premium optics and in the presence of symptoms or risk factors for retinal disease
KazRIED price
from 3 200 ₸
Cost determined after consultation
from 5 300 ₸
from 1 800 ₸
from 4 400 ₸
from 3 800 ₸
Ultrasound IOL calculation, contact
What it provides
When especially useful
KazRIED price
Ultrasound measurements for IOL calculation
When optical biometry is unavailable or clinically insufficient
from 3 200 ₸
Non-contact optical biometry and IOL power calculation
Routine preoperative planning when optical acquisition is adequate
Cost determined after consultation
Additional calculation under a separate tariff
When a multifocal/premium strategy is planned and prescribed
from 5 300 ₸
Corneal curvature measurement and basic astigmatism assessment
Nearly all IOL calculations, especially toric planning
from 1 800 ₸
Corneal shape map, irregularity detection and deeper astigmatism assessment
Toric/premium IOLs, irregular cornea, prior refractive surgery
from 4 400 ₸
Assessment of macular structures that may limit visual quality
Before premium optics and in the presence of symptoms or risk factors for retinal disease
from 3 800 ₸
Book an appointment
After measurements, the surgeon can help choose the most appropriate IOL strategy rather than simply the most premium lens, taking into account ocular health, astigmatism, distance/intermediate/near priorities and the possibility that spectacles may still be useful.
Procedure prices
Service name
Price
Ultrasound IOL calculation, contact, without A/B scan (per eye)
from 3 200 ₸
Multifocal-IOL calculation, A/B scan + calculation (per eye)
from 5 300 ₸
SENSAR AAB00 (per lens)
from 45 500 ₸
TECNIS ZCB00 (per lens)
from 57 500 ₸
TECNIS Eyhance ICB00 (per lens)
from 103 000 ₸
Clareon (per lens)
from 157 000 ₸
TECNIS Toric (per lens)
from 140 000 ₸
TECNIS Eyhance Toric II (per lens)
from 234 000 ₸
IQ Toric (per lens)
from 239 000 ₸
TECNIS Symfony ZXR00 (per lens)
from 496 000 ₸
TECNIS Symfony Toric ZXT (per lens)
from 522 000 ₸
AcrySof Vivity DFT015 (per lens)
from 561 000 ₸
AcrySof IQ Vivity Toric (per lens)
from 757 000 ₸
TECNIS Multifocal ZMB00 (per lens)
from 326 000 ₸
IQ PanOptix (per lens)
from 522 000 ₸
IQ PanOptix Toric (per lens)
from 731 000 ₸
TECNIS Synergy OptiBlue ZFR00V (per lens)
from 522 000 ₸
TECNIS Synergy Toric II (per lens)
from 595 000 ₸
Uncomplicated cataract phaco + IOL (per eye)
from 366 000 ₸
Phaco + TORIC Alcon IOL (per eye)
from 397 000 ₸
Phaco + multifocal / multifocal toric IOL (per eye)
from 405 000 ₸
Our doctors
A team of experienced doctors across specialties.
Experience: 25 years
Head
Aubakirova Alua Sauytbekovna
Candidate of Medical Sciences; Highest-category ophthalmologist
Experience: 26 years
Head
Zhakybekov Ruslan Adilovich
Candidate of Medical Sciences; Highest-category ophthalmologist
Experience: 26 years
Ophthalmologist
Tuletova Aygerim Serikbaevna
Candidate of Medical Sciences; Highest-category ophthalmologist
Experience: 8 years
Head
Ruslanuly Qayrat
Doctor of Philosophy (PhD)
Experience: 17 years
Ophthalmologist
Dzhapparkhanova Asel Urazovna
Highest-category ophthalmologist
Experience: 17 years
Ophthalmologist, Ultrasound and OCT Diagnostics
Zhanysbaeva Akmaral Esmyrzaevna
Highest-category ophthalmologist
Experience: 13 years
Ophthalmologist
Kalshabekov Alibi Sembaevich
Highest-category ophthalmologist
Experience: 18 years
Ophthalmologist, Ultrasound and OCT Diagnostics
Musaeva Zarina Maksimovna
Highest-category ophthalmologist
Experience: 19 years
Pediatric and Adult Ophthalmologist
Razdykova Dina Atabekovna
Highest-category ophthalmologist
Experience: 12 years
Ophthalmologist
Tadzhimetov Murat Mikhaylovich
Highest-category ophthalmologist
How an intraocular lens is selected
Selecting an intraocular lens (IOL) involves two related tasks: calculating its optical power and choosing its optical design.
Measurements and lens power calculation
The first task is to measure the eye and calculate the lens power intended to bring the postoperative refraction close to the chosen target.
This involves biometry and keratometry, with additional examinations of the cornea and posterior segment in complex cases.
Choosing the optical design
- A monofocal IOL usually provides one main focal point and minimizes complex light phenomena, but glasses are often still needed at another distance.
- Enhanced monofocal models may extend functional vision at intermediate distances.
- Toric IOLs are designed to correct regular corneal astigmatism.
- Extended depth of focus (EDOF) IOLs emphasize distance and intermediate vision.
- Multifocal and trifocal IOLs aim to reduce dependence on glasses at several distances, but require particularly careful patient selection because of possible halos, glare, and reduced contrast.
What determines the final choice?
The most expensive lens is not necessarily the best for an individual eye. The right choice is based on anatomy, coexisting conditions, and the patient’s actual visual needs.
Additional calculations and IOL options
When are additional calculations needed?
Additional assessment is particularly useful in cases of significant astigmatism, high myopia or hyperopia, previous laser vision correction, keratotomy, macular or optic nerve disease, diabetic retinopathy, an irregular cornea, previous vitreoretinal surgery, or when the patient is considering an EDOF, multifocal, or trifocal IOL.
For the second eye, the target refraction and strategy may be refined according to the first eye’s outcome and the visual balance between the eyes.
Lens position behind the iris
SENSAR AAB00: a single-piece posterior chamber IOL.
TECNIS ZCB00
An aspheric monofocal IOL.
Clareon
An aspheric hydrophobic acrylic IOL.
TECNIS Eyhance Toric II
A toric enhanced monofocal IOL.
IQ PanOptix
A trifocal / multifocal IOL.
IQ PanOptix Toric
A toric trifocal / multifocal IOL.
TECNIS Synergy OptiBlue ZFR00V
A presbyopia-correcting IOL.
TECNIS Synergy Toric II
A toric presbyopia-correcting IOL.
Facts and offers
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.
Related services
Frequently asked questions
What is an IOL?
An intraocular lens, or IOL, is an artificial optical lens implanted inside the eye. During cataract surgery it usually replaces the removed natural crystalline lens and provides its optical function.
Are IOL selection and IOL calculation the same thing?
No. IOL calculation determines the required optical power. Selection also involves choosing the optical design, refractive target and specific lens model according to ocular anatomy, coexisting disease and the patient’s visual goals.
Which IOL is the best?
There is no universally best IOL. The appropriate choice depends on the cornea, astigmatism, macular and optic-nerve health, previous surgery, lifestyle and the distances at which the patient wants to reduce spectacle dependence.
What is a monofocal IOL?
A monofocal IOL has one principal focus. It is usually targeted to a priority distance, commonly distance vision, and glasses may be required for other distances.
What is an enhanced monofocal IOL?
It is a monofocal optical design intended to provide a broader functional range of vision than a conventional monofocal lens, often particularly at intermediate distance. Exact performance depends on the model.
What is a toric IOL?
A toric IOL contains cylindrical optical power and is designed to reduce suitable regular corneal astigmatism. Accurate calculation and correct alignment are important for the result.
What is an EDOF IOL?
EDOF means extended depth of focus. These IOLs provide an extended range of functional vision, generally emphasizing distance and intermediate vision. Near-vision performance depends on the specific design.
What is a multifocal or trifocal IOL?
These are presbyopia-correcting IOLs designed to provide useful vision at multiple distances. They can reduce spectacle dependence but are not suitable for every patient and require careful selection.
Can a multifocal or EDOF IOL make me completely spectacle-free?
Spectacle dependence may decrease substantially, but complete independence cannot be guaranteed. The result depends on IOL type, ocular health, residual refractive error and the patient’s visual needs.
Why can multifocal IOLs cause halos and glare?
Multifocal optics distribute light between several focal points. Some patients therefore experience halos, glare, starbursts and reduced visual quality in low-light conditions. Severity varies between individuals.