Test on Contact Lens Fitting and Complications

Question 1: Pre-soaking GP lenses for at least 24 hours before dispensing is a management technique for initial poor surface wettability.

A. Ano

B. Ne

Explanation: For initial poor surface wettability, management includes pre-soaking lenses for at least 24 hours before dispensing, using a laboratory cleaner or solvent to remove residual polish, and re-conditioning the lens with wetting solution.

Question 2: Changing to a higher Dk material is a recommended management strategy for reduced vision caused by GP lens flexure.

A. Ano

B. Ne

Explanation: The study materials state that management for GP lens flexure includes changing materials 'From a higher to a lower Dk', not a higher Dk material.

Question 3: Which of the following can lead to discomfort for a patient wearing hydrogel contact lenses?

A. A torn lens or an inverted lens

B. A tight lens or trapped foreign body

C. Lens deposits or defective lenses

D. All of the above

Explanation: According to the study materials, discomfort in hydrogel lens wear can be caused by various factors including a torn lens, inverted lens, tight lens (constant discomfort), trapped foreign bodies (sudden discomfort), lens deposits (causing discomfort that increases with wear), and defective lenses (abrasions, tears, scratches, nicks, holes, poor optics).

Question 4: Which of the following describes the initial fitting evaluation process for Air Optix Multifocal contact lenses, according to the provided materials?

A. Occluding one eye to assess monocular distance vision before binocular evaluation.

B. Allowing 10-20 minutes for the lens to settle before evaluating vision.

C. Having the patient read magazines or newspapers for near point evaluation.

D. Primarily focusing on refining the prescription extensively during the initial fitting.

Explanation: According to the study materials, for Air Optix Multifocal lens evaluation, one should 'Allow 10-20min for lens to settle' and 'Ask to read magazines or newspaper' for near point evaluation. It also states to 'Never occlude one eye during fitting process' and to 'Don’t spend too much time refining at initial fitting'.

Question 5: When assessing reduced vision as a hydrogel lens complication, a problem-oriented case history includes inquiries about the onset and duration of the vision problem.

A. Ano

B. Ne

Explanation: For hydrogel lens complications involving reduced vision, a problem-oriented case history should investigate the onset and duration of the issue.