Prescription glasses help correct sight but they have no automatic advantage to screen light. All they do is to bring the light to the right place, which is the retina, without playing the role of selecting wavelengths released by digital devices. It is ineffective to rely on them as protection on the screen.
Special computer glasses could also have adaptations with regards to the use of the screen. Certain lenses have filtered to filter out some percentage of high-energy visible (HEV) blue light that displays emit. The indicated purpose is alleviation of eye strain, although there is little scientific agreement as to how effective blue light filtration is long-term in terms of retinal health.
Identical glasses used on other computers have such relatively small magnification like (0.50 to 0.75) in the lower area. This minimizes eye straining that would be needed to obtain distances in the middle range such as a computer screen. This design is a clear counter to the signs of a digital eye strain like a headache and loss of vision during long work at the screen.
Most importantly, no pair of glasses gets rid of the fundamental reasons of digital eye stress: lengthy focus, lower prolonged, and inappropriate viewing ergonomics. Often the blue light blocking assertions go beyond the actual science. They are mainly useful in the fact that they are a possible source of alleviating subjective discomfort in some users.
Thus, whereas computer glasses at specialized use only alleviate such disorders as eye fatigue and dryness in some specific people, it would be erroneous to claim that the former provide some sort of protection to eyes. They are pro-survivors and not defensive handles. They solely rely on the lens type and sensitivity of a person.
Conclusion:
Some users are helped by the use of specialized computer glasses (blue light filtering lenses or digital magnification glasses) that help alleviate symptoms of digital eye strain. They, however, do not offer basic biological defense to the screen light. They do not substitute other habits whose importance requires no explanation: the frequent breaks should be taken, the ergonomics should be optimized, the quality of the lighting has to be of appropriate quality, and the blinking should be observed regularly. Use them potentially as a relief, not as protection.
