15. How to: Full fitting routine with over refraction Flashcards
What is the purpose of H&S in fitting appointments?
Identify risks factors, need and address expectations
Purpose of over-refraction
Optimize VA : Used to identify the trial lens that will be given to patients
Lens selection is based on what 4 conditions?
- Decisions based on H&S
- Spectacle Rx
- Anterior eye findings
- Lens cost
How can you help patients make an informed choice?
Inform patients of the options available
How do you manage patients with different cyl Rx: 1 is -0.75 and other eye is -0.25?
- Discuss patients options: sphere or toric
- Depend on patients requirements
- Demonstrate difference with trail frame- sphere and toric.
Allow patient to make a choice/ decision.
What is over-refraction?
What is the purpose?
A refraction over the contact lenses.
Purpose: gives information if you need to modify the power of the CL.
Over-refraction procedure?
- Cover LE
- Record RE VA
- Duochrome
- Record VA and OR
- Repeat for LE
- Binocular balance
- Record binocular VA
- Near VA - Binocular
Should you do cross-cyls in OR?
Not at this stage
2 conditions when you record OR in your CL Rx is?
- It improves VA
- It makes sense with the spectacle Rx