Reasons for Digital Eye Strain: Posture & Ergonomics
Extended smart phone use creates problems because working distances are so close. Sustained focus (see this section) and extended convergence (in-turning of eyes) cause fatigue and strain. Proper eye wear and taking breaks are the best solutions.
Progressive lens users also have postural issues. At a desk, the ideal spot to view a desktop screen is partway down the lens… this causes users to lift their chin for extended periods resulting in neck aches and pains. There are products that allow for more comfortable postures (e.g. Essilor Digitime or Zeiss Office lens). These lenses very helpful to reduce strain and address multiple working distance issues.
For a progressive lens wearer, if a separate 'Office Style' set of glasses is not practical, setting the computer monitor as low as possible is important (i.e. with straight ahead gaze, the top of your computer screen should be at eye level)
A recent patient of mine came up with this perfect description for the way her eyelids felt... Gritchy.
What did she mean and what causes this?
I wonder if this eye drop is still ok?
Scenario: you dig an eye drop bottle from deep in your travel bag. Expiration date on the worn label is next month .. is this drop still ok to put in your eye?
Do you blink to clear?
I suggest that clinically I see many patients mis-attribute transient screen blur to their glasses. This is most likely dry eye and counseling on drop use is usually met with some skepticism!