Biometry & keratometry
Precise planning comes before surgery.
Measurements, clinical assessment and discussion of visual needs are combined to support intraocular lens selection.
Planning
Personalised
Measurements
Biometry & keratometry
Aim
Appropriate intraocular lens
Eye examinations
Pre-operative Cataract Assessment
Before surgery
Not one measurement, but a comprehensive assessment.
Pre-operative assessment gathers the clinical information required to plan cataract surgery and select an intraocular lens.
It combines an assessment of overall eye health, anatomical characteristics and everyday visual needs.
The precise set of tests is tailored to the medical history and performed only with suitable available equipment or an appropriate clinical collaboration.
Intraocular lens selection is not based on descriptions such as “premium” and cannot promise complete independence from glasses.
What it may include
Precise measurements and a comprehensive assessment of eye health.
Each investigation answers a different part of the pre-operative planning process.
01 / MEASUREMENTS
Biometry & keratometry
Intraocular lens calculation
Recording anatomical characteristics that support lens power calculation.
- Axial length
- Corneal curvature
- Intraocular lens power
- Degree & type of astigmatism
02 / HEALTH
Comprehensive assessment
Ocular structures
Assessment of factors that may affect lens selection and visual prognosis.
- Visual acuity & refraction
- Macula
- Retina & optic nerve
- Intraocular pressure
The process
From measurements to personal visual priorities.
Planning is completed by discussing individual needs and realistic expectations.
01
Clinical examination
Assessment of the cataract, vision and overall eye health.
02
Biometry
Measurement of axial length to calculate intraocular lens power.
03
Keratometry
Measurement of corneal curvature and astigmatism.
04
Discussion of options
Relating findings to activities, goals and the possible need for glasses.
Before your appointment
Bring previous examination reports, a history of surgery or laser treatment, a list of medications, information about contact lens use and your questions.
Personalised assessment
Clinical interpretation
Intraocular lens selection
The appropriate choice is guided by data and personal needs.
The decision considers the measurements, the health of ocular structures and expectations for distance, intermediate and near vision.
01
Anatomy
Measurements of the eye, cornea and astigmatism.
02
Eye health
The condition of the macula, retina and optic nerve.
03
Everyday life
Activities, visual priorities and acceptance of a possible need for glasses.
Any pause in contact lens wear or change to medication must follow individual guidance from the doctor.
Frequently asked questions
Before your examination.
Concise answers about the process and preparation.
Is it a single measurement?
No. It combines clinical examination, biometry, keratometry and additional assessments when indicated.
Which intraocular lens is best?
There is no single option suitable for everyone. The decision is based on measurements, eye health and personal needs.
Will I need glasses afterwards?
This depends on several factors and is discussed individually. A general promise of complete independence from glasses cannot be made.
Precise preparation
Careful planning is a fundamental part of cataract surgery.
Arrange a comprehensive pre-operative assessment and discussion of the available options.
or call +30 697 421 2356
Medical information notice
This content is provided for general information and does not replace an ophthalmic examination, diagnosis or personalised medical advice.