What does full focus lens mean?
Full focus lenses are actually designed based on a myopia control theory.
The continuous deepening of myopia is considered a common correction method (such as frame glasses) that can achieve central retinal focus while the peripheral retina is overcorrected. A full focus lens is a lens that can theoretically focus both the periphery and center of the retina, but its practical use may be difficult.
Advantages of full focus lenses
The advantages and disadvantages of full focus glasses are that ordinary people usually wear glasses because the bridge of their nose is relatively flat and thin. Wearing frame glasses for a long time can cause the glasses to droop, causing the imaging to deviate from the retina. The feeling of wearing them will become worse, and the degree of myopia will also deepen uncontrollably. Full focus myopia prevention lenses are to some extent lighter and thinner.
Effectively alleviate and reduce pressure on the nasal bridge, as the defocus design is adopted, even if the glasses slide and tilt, there will be no deviation from the retina.
