Professional Optometry Center
Lenses Detail Pictures:
Lenses kinds: Progressive multi-bifocal HC CR-39 resin aptitude lenses (no photochromic)
Note:
1. If the prescription have astigmatism, we must be custom for 5-7 days, special diopter please contact our customer service)
, if you need free form or interior wider progressive lenses, please Click me
Presbyopia definition:
With increasing age the human body, human eye lens flexibility gradually weakened, the ciliary muscle
Correspondingly decreased muscle strength, resulting in people seeing near objects appear blurred. Presbyopia quantitative definition of accommodative power ≤ 4D, the near point distance ≥ 0.25m.
Symptoms of presbyopia:
1, in a weak environment, especially the small words on the reading difficulties
2, reading books or newspapers, away from the eyes will feel comfortable reading
3, writing, reading, doing fine hand work can not be sustained when
4, reading the newspaper, took off his glasses more comfortable
5, the time to buy things, read the wrong price
6, when compared with the young, to read books or newspapers stronger brightness, because the increase with age, cataract began.
Progressive lenses suitable for middle-aged people:
, employees of leading enterprises and institutions (such as banking, ecommunications sector, foreign company, etc.), civil servants, etc.
, monocular vision, a high degree of astigmatism can wear