Exam and Diagnosis

Exam and Diagnosis


At McCrodan Vision Development we test for the visual skills that most affect your quality of life.  These are the skills that pertain to reading, writing, attention, spelling, balance, dizziness, post concussion syndrome, headaches, double vision and much more.

What to expect for the Initial examination

Before: Detailed history forms are then sent to you for completion and are to be brought to the appointment.
When you arrive: The appointment is approximately 1 hour long spent with the doctor.

During the exam process it is important to fully evaluate all aspects of the visual system in order to determine where the deficits are, and what the treatment plan will be.  These are just a few of the areas that can be evaluated:

  • Eye tracking skills – eyes following a line of print
  • Eye teaming skills – two eyes working together as a synchronized team
  • Binocular vision (eye teaming)  – simultaneously blending the images from both eyes into one image as well as coordinating their movement
  • Accommodation – eye focusing
  • Visual-motor integration – eye-hand coordination
  • Visual performance, attention, and processing


At the end of the examination there will be a discussion about what has been found and what the management options are. This may be one of, or a combination of:

  • Corrective lenses
  • Treatment lenses – Prescribe for efficiency and treatment, not just what allows one to ‘see clearly’
  • Referrals for other modalities (including surgery where appropriate)
  • Monitoring
  • Vision therapy


The Readalyzer infrared tracking system is one of the instruments that may be utilized to determine if there are visual conditions present.

Here are two videos taken with the Readalyzer Infrared recording system of patients reading



*Please note that McCrodan Vision Development will not be performing routine Optometry examinations and requires that you have an up-to-date routine eye examination with your regular optometrist prior to your evaluation. This is so that your appointment time can be used in examining the visual skills and other areas that are not covered in routine exams. 

For your information we have provided a synopsis of the common types of eye exams

Types of Exams

School screening:  Very basic — picks up only the most rudimentary problems and often misses those that are more subtle or complex.  Generally performed by a nurse.

Optician’s Sight Test:  Gives a prescription based only off of a machine’s reading.  Only gives a very small portion of the picture; does not look at health or any other visual skill.  The prescription given is often quite different than what would be given by an optometrist.

Optometry Exam:  Examines the health of the eyes and determines if there is a required prescription.  Often includes basic testing of eye movements and some tests of focusing ability but may necessarily not deal with other visual skills. Often your optometrist will pick up on irregularities and refer patients for further evaluation.

Ophthalmology Exam: Examines the health of the eyes with little emphasis on prescription.  Does not include testing of more than basic eye movements and no testing of visual skills.  Ophthalmologists specialize in pathological disease treatment and surgery.

Developmental Optometry Exam: Once the anatomical health of the eye is assured, emphasis is on binocular vision, eye-teaming skills, focusing ability, eye movement and control,  investigating visual performance and processing.  Part of the examination will usually include tracking the eye movement while reading with an infrared recording system.  This allows the coordination to be quantified, analyzed, and compared against the expected norms for the age.

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T: 250.590.7384

F: 250.412.6459

American Patients: 1.347.554.1719

E: [email protected]

A: 734 Caledonia Avenue.
Victoria BC V8T 1E5


Sunday: Closed*

Monday: 9:00am - 5:00pm

Tuesday: 10:00am - 6:00pm

Wednesday: 10:00am - 6:00pm

Thursday: 10:00am - 6:00pm

Friday: 9:00am - 5:00pm

Saturday: 10:00am - 5:00pm

*Hours above do not reflect therapy hours.

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