OPT405 - Advanced Contact Lens Lab - Ocular Assessment

Subject Title
Advanced Contact Lens Lab - Ocular Assessment

Subject Description
This course expands on the clinical skills learned in Contact Lens Lab I. Students apply the principles of patient assessment and advanced examination techniques to investigate the ocular structures to detect ocular conditions that are contraindications for contact lens wear. Emphasis is placed on dry eye assessment, interpretation of findings and management.          

Credit Status
One credit toward the Opticianry Diploma Program

Learning Outcomes
Upon successful completion of this subject the student will be able to:

Upon successful completion of this subject, the student will be able to:

1.  Apply principles of safety and infection control when assessing patients and when using instrumentation. 

• Apply the safety and infection control requirements as stated in COO Standard 4: Safety and Infection Control.
• Document and track safety and infection control related incidents.                

2. Perform subjective and objective patient assessment to determine patient’s ocular health.

• Take a patient health and contact lens wear history.
•  Conduct a comprehensive evaluation to assess patient ocular health.
•   Measure corneal curvature, diameter and pupil size and palpebral fissure height.
•   Perform slit-lamp bi-microscopy to assess ocular surface health and tear film quality.
•   Manipulate eyelids to expose and asses the tarsal plate.
•   Identify additional information required for a complete patient questionnaire.
•    Apply professional communication and confidentiality requirements as stated in the COO Standards of Practice.                                         

3. Perform a comprehensive eye assessment to evaluate tear film deficiencies. 

• Differentiate between dry eye causes related to the eye, sex, age, use of digital devices and environment.
• Perform a questionnaire and a risk factor assessment for a dry eye patient.
•  Perform non-invasive and invasive tear film assessment techniques.
•  Diagnose dry eye by quantifying results from the risk factor assessment and abnormal findings.
•  Identify products and devices used to assess the dry eye disease.
•   Discuss dry eye management options with patients and lenses to address the effects of medications.
• Discuss referral process to see an optometrist for further investigation and  treatment.

4. Operate the corneal topographer to assess cornea, identify abnormalities and interpret findings.  

• Prepare instrument for measurements including calibration.
•  Identify instrument menu and icons.
•   Prepare patient for testing.
•   Analyze and interpret results.

5. Examine the eye to identify ocular pathologies using the digital slit-lamp bio-microscope.   

•   Perform advanced slit-lamp bio-microscopy techniques to identify ocular pathologies.
•   Capture images and videos and interpret findings.

 

6. Interpret corneal staining to determine eye suitability for contact lens wear.                                                               

•          Discuss the protocols for safe use of ocular stains.
•         Discuss strategies of subjective grading of ocular staining.
•         Apply fluorescein on the eye and evaluate findings with the slit-lamp.
•         Recognize staining patterns based on position and interpret findings.
•          Compare and contrast ocular staining using grading systems or digital image  analysis.

                                                                                 

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