Problem Solving Tips

Insertion Bubbles

Insertion bubbles are common. To avoid, completely fill the bowl of the lens with solution prior to applying.

Insertion Bubbles

Small Bubbles

Small bubbles that move around are acceptable as long as they don’t cross over the pupil and interfere with vision. However, bubbles that are fairly stationary are not acceptable and the fit should be modified to eliminate them.

Small Insertion Bubbles

Excessive Apical Pressure

If excessive central touch and bubbles for in the scleral area, the lens is not properly aligned with the sclera but instead is rocking on the cornea. The wearer may also complain of edge awareness in this situation. To correct, increase the sag depth value.

Excessive Mid-peripheral Clearance

When the proper sag depth value has been determined but bubbles still persist in the mid-peripheral/limbal zone clearance, keep the sagittal depth value the same, but choose a decreased mid-peripheral/limbal zone clearance value. 

Causes of Discomfort

#1 Lens is landing on the limbus, even partially or intermittent ( change sag height or increase profile )

#2 Bubbles, bubbles can cause some irritation (see section on bubbles)

#3 A loose or moving Scleral Lens can cause some discomfort ( improper alignment )

#4 A foreign object like an eyelash or debris can cause an uncomfortable sensation (remove and clean the lens)

Conjunctival Impingment

When conjunctival impingement occurs showing excessive blanching; order a lens with a flatter edge, either 1-Flat or 2-Flat. Depending on the lens diameter, increase the profile, increase the sag, or depending on the severity, consider all three options simultaneously. 

Conjuctival Blanching