Proceed Fitting Guide

Proceed

Select Frame

  • Lightweight, well-proportioned frames with adjustable nose pads work best. Avoid oversize frames.
  • Choose a frame so that the pupil location is balanced vertically. Ideally, the pupil should be located in the upper half of the frame, between 50 and 75% of the total frame height. Avoid a frame where the pupil is above or below this range. Assure there is sufficient height to accommodate near and distance vision.

Adjust Frame

  • Fit the frame as close to the face as possible without touching skin or eyelashes.
  • Set pantoscopic tilt to approximately 10-degrees.
  • Pantoscopic tilt modifies near/distance PD ratios. Decrease tilt if distance PD decreases below 58mm. Increase tilt if distance PD exceeds 68mm.

Measure Patient PD

  • An accurate monocular PD is important. Use a pupilometer.

Measure Fitting Height & Confirm PD

  • Have the patient wear the frame for a few minutes to adjust to it. Proceed PALs are designed so that the pupil sits right at the beginning of the corridor. With the patient looking straight ahead, place a small dot on the sample lens at the center of each pupil. Draw a horizontal line through each dot. Double-check to make sure the lines bisect the pupils.
  • Place the frame on the fitting guide scale so that the vertical line labeled "0" divides the bridge in half, and the dots and lines on the sample lenses line up on the horizontal line.
  • Confirm PD using the scale. Measure the fitting height from the lines on the sample lenses to the deepest part of the frame.
  • NOTE: Follow Fitting Height Recommendations. Do not fit below minimum heights.

Verify Cutout

  • Place the frame over the cutout circle on the fitting guide, and align the pupil dot and horizontal line that you made on the sample lens with the fitting cross on the diagram. If the frame does not fit within the circle, the lens may not cut out correctly.

Verify Fitting Height and PD

  • When the lab returns your lenses, they should have verification markings or a verification sticker. If not, place the lenses face down on the chart to draw the verification markings.
  • Confirm the fitting height and monocular PD by placing the frame face down on the fitting guide scale so that the vertical line labeled ?0? divides the bridge in half, and the fitting cross on the lenses rest on the horizontal line.
  • Place the frame on the patient and verify that the fitting cross is at the pupil center. Adjust the nose pads if necessary.
  • On final fitting, check tilt and that the wraparound is not excessive. Adjust if necessary until the best fit is achieved (for optimal distance and reading vision). In the rare case where the patient experiences visual difficulty at the pupil location, lowering the frame slightly (1.0 - 2.0mm) may increase wearing comfort.

Instruct the Patient on Proper Use

  • Demonstrate the use of distance, intermediate and near zones. Explain the proper way to clean lenses.
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