Spec Rx:
- OD: -3.25 -0.50 x 180
- OS: -4.00 DS
- Add: +2.00

Patient CL Rx in Air Optix Aqua 8.6/14.2:
- OD: -3.50 DS
- OS: -2.00 DS

What Rx would you prescribe over CLs for near tasks?

A. OD: -3.25 -0.50 x 180, OS: -2.00 DS, Add +2.00
B. OD: -3.50, OS: -4.00, Add +2.00
C. OD: -3.25 -0.50 x 180, OS: -4.00 DS, Add +2.00
D. OD: -3.50, OS: -2.00, Add +2.00

Answer :

Final answer:

The correct prescription to provide over the existing contact lenses for near tasks is option d) OD: -3.50, OS: -2.00, Add +2.00, given that the contact lenses already correct for distance and the Add power of +2.00 is for near work.

Explanation:

The prescription that should be prescribed over contact lenses (CLs) for near tasks is as follows:

  • OD: -3.50 DS
  • OS: -2.00 DS
  • Add: +2.00

Since the patient is already wearing contact lenses that correct their vision, they only need the additional power for near work, which is the Add power of +2.00. The contact lens prescription is taken into account for distance correction, and the Add power is for near tasks.

The correct answer from the options provided is:

  • d) OD: -3.50, OS: -2.00, Add +2.00

The patient's contact lens prescription in Air Optix Aqua is OD -3.50 DS and OS -2.00 DS for correcting distance vision. For near tasks, we add the Add power of +2.00 to the existing contact lens power.