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ESONT Course Descriptions

London 2014ESONT Course Descriptions

Axial Eye Length Measurement and IOL Power Calculation for Refractive Cataract Surgery

With ever increasing patient expectations, cataract surgery has now moved into the realm of refractive surgery, demanding that today’s IOL calculation team continuously evaluate the accuracy and efficiency of performing preoperative measurements and IOL power calculations. With the increased requirements of premium lenses along with the added complexity of patients who have had prior refractive surgery, this topic is more relevant than ever before.

This session will review recommended validation criteria to ensure accuracy and consistency in the following four critical areas: (1) axial eye length measurement, whether obtained by optical coherence (IOLMaster/LENSTAR) or immersion ultrasound biometry, (2) corneal power measurement (keratometry) for both monofocal and toric lenses, as well as for patients who have had prior refractive surgery,
(3) appropriate lens power calculation formula selection, and (4) the importance of lens constant personalization.

The session will conclude with live demonstrations of axial length measurements performed on volunteer patients utilizing the latest version biometry equipment provided by the following participating manufacturers:

  •    Accutome: A-Scan Plus
  •     Carl Zeiss Meditec: IOLMaster 500
  •     Ellex: eyecubed
  •     Haag Streit: LENSTAR LS900
  •     Quantel Medical: Axis NANO
  •     Sonomed Escalon: PacScan Plus
How to Present a Paper

This workshop is aimed at those who are interested in presenting at Conferences. It will look at the important steps of presenting, from submitting your abstract, preparing your PowerPoint to presenter hints and tips. This will be an interactive workshop and will hopefully give you the confidence to submit your abstract for Conferences in the future.

Infection Control

The transition of healthcare delivery from hospitals to ambulatory care settings, along with ongoing outbreaks and patient notification events, have demonstrated the need for greater understanding and implementation of basic infection prevention guidance.

Healthcare personnel have the potential for exposure to patients and/or to infectious materials, including body substances, contaminated medical supplies and equipment, contaminated environmental surfaces, or contaminated air.

In this course we will review:

•     Basic microbiology
•     Concepts of infection control
•     Methods used to prevent growth and spreed of microorganisms:
– Antiseptics/cleaning
– Disinfection
– Sterilization
•     Guidelines for disinfection and sterilization

Optical Coherence Tomography

Optical coherence tomography is a technique of imaging the posterior pole using interferometry, a process analogous to ultrasound. OCT allows a tomography of the retina and its different layers with an axial resolution of 10 microns. Its final image is a false colour image representing different layers, from RPE to the RNFL layer. This permits the exact localisation of the pathology and an evaluation of its volume. OCT is an advantageous method because it is not invasive, and in many cases pupil dilatation is not necessary. Good results are obtained with only 3mm dilatation. This course shows the basis of the technique, its advantages and applications, and some results in different cases of retina pathologies. Participants will have hands-on practice with the equipment.


This hands-on wetlab course will cover wound construction, capsulorhexis, phacoemulsification, I/A and IOL implantation.

Posterior Segment B-Scan: A Standardized Approach to Clinical Application

B-Scan ultrasound is a valuable tool for differentiation of a wide range of ocular disorders of the posterior segment. Discussion of the diagnostic capabilities enhanced by optimal examination technique will illustrate ways to maximize utilization of this technology as an adjuvant to clinical decision making.

The first half of the course will review principles and criteria for obtaining optimal images. Topics will include standardized scanning orientations for localization and documentation of pathology, imaging the optic nerve and macula, as well as comprehensive examination of the eye with opaque media. The second half of the course will consist of case presentations illustrating B-scan differentiation of ocular pathology involving the vitreous, retina, choroid, sclera, and optic nerve, as well as the combined use of diagnostic A-scan for differentiation of masses.

The session will conclude with live demonstrations of comprehensive examinations on volunteer patients utilizing the latest version B-Scan equipment provided by the following participating manufacturers:

•     Accutome: B-Scan Plus
•     Ellex: eyecubed
•     Quantel Medical: Compact Touch
•     Sonomed Escalon: Master Vu B

Refractive Surgery

In this course participants will have the opportunity to look at the current techniques used in refractive surgery:

•     Topography: the course will contain a theoretical part and hands-on practice where participants will learn to do exams.
•     Critical points about patient selection and decision-making concerning a photorefractive candidate, and evaluating quality of vision following refractive surgery.
•     An overview of microkeratomes will be given, along with hands-on practice where the participants can look at assembly and tips for a safe procedure.
•     Postoperative complications, emergencies and re-operations will also be covered.

Part 1 – Theory:
•     Current techniques
•     Evaluating visual performance following refractive surgery
•     Patient selection/decision-making
•     Emergencies/postoperative complications
•     Re-operations

Part 2 – Practical:
•     Topography
•     Overview of microkeratomes

Please note: All those attending Part 2 must also participate in Part 1 of the course.  However it is possible to attend Part 1 without attending Part 2.

Slit Lamps

The slit lamp is essentially a binocular microscope and is a way of combining magnification with illumination. A few basic rules can make the equipment easier to use. This course welcomes both beginners and those who have a greater understanding of the area, and will provide an informative demonstration of the microscopic slit lamp.

Visual Fields

This course provides the opportunity for hands-on learning as an introduction or as an update of your existing skills. Visual field testing provides extremely important information and is a vital skill to master.