Eye Care for Screen Workers

Your distance glasses are optimised for far vision. Your reading glasses are optimised for about forty centimetres. A monitor typically sits at sixty to eighty, which is precisely the range neither handles well.

For patients under forty, a single vision lens set to measured screen distance, sometimes with a small relieving power, frequently resolves the complaint outright. For presbyopic patients, an office progressive with a wide intermediate zone is transformative compared with fighting a general progressive's narrow intermediate band.

The key word is measured. We measure the distance to your actual screen rather than assuming a standard, because desks vary enormously and a lens set to the wrong distance is a lens set to the wrong distance.

Blue light filtering is sold on the claim that screen blue light damages the retina. The research does not support that at the intensities screens produce, and sunlight delivers vastly more blue light than any monitor.

What can be said fairly is that some patients report genuine comfort improvement during long sessions, and there is a more defensible rationale for evening screen use and sleep timing. We will fit it if you want it, at a fair price, described accurately. We will not tell you it prevents eye damage.

A large share of what patients call eye strain is dry eye triggered by reduced blinking. The symptoms overlap almost completely: burning, grittiness, blur that clears briefly when you blink, heaviness by late afternoon.

If that describes you, no lens fully solves it because the lens is not the problem. We assess the tear film at the same visit, and treating the dryness is frequently what actually resolves the complaint.

Phoenix compounds this. Relative humidity regularly drops into single digits and offices run air conditioning most of the year, so the tear film here is under more pressure than in almost any other American city.