OPT206 - Eyeglass Dispensing Lab II

Subject Title
Eyeglass Dispensing Lab II

Subject Description
This subject emphasizes procedures for fitting, dispensing, multifocal, and progressive lens designs and consolidates knowledge and skills learned in previous professional subjects. Advanced fitting techniques, Rx interpretation and professional standards are included.

Credit Status
One credit towards the Opticianry Diploma.

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 protocols for infection control to ensure a safe lab environment.      

•          Practice the protocols for infection control.       

         2.   Compare multifocal and progressive lenses based on material, composition and construction.    

• Categorize special design lenses in terms of materials, index of refraction an additional features.
• Identify multifocal lenses based on construction and design.
• Identify progressive addition lenses based on construction and design.    
•  Recognize the purpose and location of permanent and non-permanent markings in progressive addition lenses.

         3.  Measure/Neutralize multifocal and progressive addition lenses without prism and with prescribed prism.       

•     Neutralize multifocal lenses.
•     Neutralize progressive addition lenses.

          4.   Measure/take advanced fitting measurements for multifocal and progressive addition lenses

• Observe patient height, head tilt and head position when walking.
• Select appropriate frames for the RX to dispense multifocal and progressive lenses.
• Adjust frame adjustments on patient face.         
•  Take inter-pupillary distance measurements using the ruler & pen light, the pupilometer and various digital devices.      
•   Practice the standard method for taking multifocal lens measurements.   
•   Practice the standard method for taking progressive addition lens measurements.

          5.     Select appropriate lenses and frames based upon the prescription requirements, patient history and fitting measurements

•     Conducts an assessment to determine patient needs and wants
•     Specify considerations for lens & frame selection when dispensing multifocal lenses.    
•     Specify considerations for lens & frame selection when dispensing progressiveaddition lenses.          
•     Specify procedures to follow when replacing a single lens in the patient's eyeglasses.
•    Prepare the eyeglass order for the laboratory.

          6.    Assess procedures for final inspection of multifocal and progressive eyeglasses in accordance with the ANSI tolerance chart.  

•      Verify lenses with the original order based on lens markings, tints and coatings.   
•      Verify progressive lenses removable markings:                       
•      Verify that the lens power meets ANSI standards   
•       Identify the locations where distance power (DRP) and prism (PRP) are measured.  
•       Verify the distance power and prism power in accordance with the lensometer protocol
        and against the lab order.     
•       Verify with the PD ruler the fitting cross height and mono pupillary distance against the
           original order.    
•       Verify lens base curve, and center and edge thickness.

          7.      Prepare finished spectacles for delivery and educate patient on proper use and limitations     

•    Perform eyewear visual inspection.
•    Practice final frame adjustments on the patient face to assure maximum comfort.        
•    Verify lenses before removing the visible markings:      
•    Verify that the eyewear meets patient's needs and expected visual acuity
•    Educate patient on proper eyeglass wear and limitations

                                                                                                                                                 
 

                                                                                               

                            

                                                    

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