Application, Taboo and Unsuitable Group of Progressive Multifocal Lenses

Since the birth of progressive multifocal lenses, another possibility has been found to adjust vision. Originally, we only use hyperopia glasses or shortsighted glasses alone, but completely ignore the taboo and applicable population of progressive lenses. Today we're going to give you scientific popularization.

Progressive lenses for people

Patients over 45 years old with long distance, short distance or medium distance eye always need to wear glasses in work and life. Such as teachers, doctors, leading cadres, etc. These people are not satisfied with the traditional bifocal lenses. Therefore, we recommend progressive reading glasses with transition lenses and sightline multifocal computer reading glasses.

The distant vision of adolescents is normal. Therefore, blue cut progressive lenses and progressive reading sunglasses can be used to prevent myopia. Myopia in patients with myopia increases faster every year. Progressive lenses can delay and control the development of myopia.

Progressive lenses are also suitable for ametropia: single light is less than or equal to ±8.00ds, astigmatism is less than or equal to ±2.00dc, and vertical anisometropia is less than or equal to ±2.00d.

Progressive multifocal glasses are suitable for most of the people with far, middle and near vision needs, and it is the best fit for presbyopia with ametropia. People with abnormal regulatory functions can reduce the symptoms of regulatory fatigue by wearing progressive glasses. People with abnormal assembly functions can reduce the symptoms of excessive assembly by wearing progressive glasses.

Three taboos of progressive lens

Progressive lenses are not suitable for patients with vertical anisometropia greater than ±2.00d and astigmatism greater than ±2.00d. Because of the large Anisometropia of the two eyes, the prism effect cannot be tolerated when the eyes focusing. When reading, both eyes not only turn inward, but also rotate their lower ends to the nasal side, resulting in a slight difference between the near astigmatism axis and the remote astigmatism axis. If the astigmatism is too large, the correction of near astigmatism will be affected.

It is not suitable to choose progressive multifocal glasses for patients with large fields of view in middle distance and close distance, such as drivers, librarians and accountants.

Patients with normal distant vision, never wearing glasses, and hoping that a pair of glasses can see distant, medium and close objects at will, the success rate of such patients with progressive multifocal glasses is low. We recommend good quality reading glasses and high-end reading glasses.

Six groups of people who are not suitable for progressive glasses

Because the position of the near visual area of the progressive mirror is lower than that of the traditional multifocal lens, it is necessary to move the head position to make the eyes enter the reading area. Therefore, it is not suitable for patients who cannot move the head position at will, including lameness, short neck, short stature, cervical spondylosis, shoulder arthritis, spondylosis, and spinal curvature.

People with motor system disorders, poor balance (such as carsickness, seasickness, or similar vertigo symptoms), and inner ear dysfunction are not suitable for wearing progressive lenses, especially when fitting rigid design progressive lenses.

People who need near vision when looking up are not suitable to wear progressive glasses, such as librarians, pilots, water and electricity workers.

People who need distant vision when looking down are not suitable for progressive glasses, such as construction workers.

It is not suitable to wear progressive glasses when the diopter of spherical lens is greater than 2D and the power of effective cylindrical lens is greater than 2D, especially when it is in vertical direction (horizontal axial position).

People with height ametropia, strabismus, amblyopia, anisometropia, PD less than 58mm, flat bridge of the nose, neuroticism, hypertension, motion sickness, heart disease, and short neck should not wear progressive glasses. In addition, it is not suitable to wear progressive glasses for people with high requirements of vision and close vision and the elderly over 70 years old.

Progressive multifocal readers require best progressive multifocal glasses. Ginger is here for you to help you take care of your eyes.