Bubbles in scleral lenses can be
bothersome. A large bubble may interfere
with your vision and you will feel the lens will move more. This happens when you insert your lens
incorrectly such as when you had not filled the lens bowl completely, you moved
your eye away from the lens when the lens was about to touch your cornea or
your eyelid may have moved the lens down upon insertion allowing bubbles to
enter the lens. All you have to do is to
reinsert the lens again. If you were having difficulty to avoid very small
bubbles in the lens, then you can try to put 2 drops of Celluvisc drops in the
lens bowl then fill the remaining space with non-preserved, non-buffered saline. This will hopefully help prevent air to
enter. Happy wearing!
Many patients are asking if they can still do weight lifting since they have keratoconus. During weight lifting, in order to carry tons of weight, a powerlifter may utilise a breathing pattern which involves Valsalva manoeuvre. According to wikipedia, t he V alsalva manoeuvre is performed by moderately forceful attempted exhalation against closed airway, usually done by closing one's mouth, pinching one's nose shut while pressing out as if blowing up a balloon. Other situations where Valsava manoeuvre is done are during diving, hyperbaric oxygen therapy, air travel and sometimes even going to the restroom doing your number 1. According to Findley, Keating and Toscano (2003), the Valsalva manoeuvre is commonly used in powerlifting to stabilise the trunk during activities such as squat, deadlift, and bench press. So what happens to the cornea when Valsalva manoeuvre is done? A study by Drun et al (2017) recorded the measurements of the corneal curvature,
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