Clinical Skills Certificate Course:

Intraocular Lens (IOL) Calculations


Course level:

This course is intended for ophthalmic assistants, technicians and technologists.

Course structure:

This course consists of short, illustrated reading segments. There is a quiz at the end of the course. Upon passing the quiz, the user will receive a certificate of completion.

Estimated time to complete:

One hour.

Short Course Description:

This course on Intraocular Lens (IOL) Calculations discusses types of IOLs. measurements needed, insuring accuracy of measurements, calculation formulas, modifications to formulas, toric calculations, using a topographer, special situations, and evaluating a post-op surprise.

For the Detailed Course Description, see below

The course can be purchased via Paypal (you don't need a Paypal account) by using the button below, $10 for 2 months of access. More than one course can be purchased at the same time by going to the course catalog. Courses can also be purchased via from the course catalog.

After purchase, the course can be accessed immediately by using the "courses" tab on the top menu bar to link to your "my courses" page.

Detailed Course Description

Intraocular Lens (IOL) Calculations, Part 1

Types of IOLs
Basics of A's and K's
    The basic power calculation: what it tells us and how to use it
    The "average" eye
    Rounding up
    How the following relate to the IOL power:
       flat and step corneas
       short and long eyes
Corneal Measurements
    Options for K readings
    Standard deviation
    The corneal surface
    Fixation and head position
Axial length measurements
    Options for axial length measurements
    Confirmation of measurements
IOL calculation formulas
    Modifications to the formula
       the IOL power/refractive error relationship
       the surgeon factor
The contact lens wearer
The refractive surgery patient
Macular OCT

Intraocular Lens (IOL) Calculations, Part 2

Limbal relaxing incisions (LRI) and Surgically Induced Astigmatism
    Calculations via a website
Toric IOL calculations
    Calculations via a website
Using a topographer in the IOL evaluation process
    Types of topographers
    Evaluating abnormal corneal shape
    Multi-focal IOLs and contrast
    Evaluating higher order aberrations
    Evaluating spherical aberrations
    Evaluating corneal astigmatism
Special situations
    Silicone oil
    Posterior staphyloma
    Scleral buckle
    Calculations for the highly myopic eye
    Lens position and lens power
       anterior chamber
Evaluating a post-op surprise
    Find the error to minimize recurrence
    Assist in the solution