Our eyesight works at its best in adolescence when our focus and vision are clear. However, visual ability gradually deteriorates after the age of 30. Age results in less efficient and worn-down vision, especially when we are exposed to a computer screen for hours or reading documents in fine print. Focus ability will deteriorate so that a person cannot read a book at a normal distance, finally leading to presbyopia.
Single-focal eyeglasses were first developed 700 years ago to correct the presbyopia. Although they could help a person see objects at near distance, they still lacked convenience because users had to switch glasses back and forth to fit their visual needs.
Benjamin Franklin, an American scientist and inventor, invented bifocal eyeglasses 200 hundred years ago. Benjamin suffered from hyperopia since he was in his early twenties. When he passed his forties, he suffered presbyopia at the same time. He had to alternate two pairs of glasses from time to time to see objects at near and far distance. Such inconvenience encouraged Benjamin to create bifocal eyeglasses that include a lens for hyperopia at the top of the glasses and a lens for presbyopia at the bottom. This enabled him to easily see both near and far objects at the same time. The bifocal lens was considered at the time to be the best ever technology for visual correction. And, it is still widely used until today.
Certainly, single focal and bifocal lenses do enhance near-distance vision. However, they also accelerates visual deterioration. Moreover, we sometimes need to change the focal point from one to another quickly but lenses cannot adjust their focus spontaneously. This makes the eyes work harder to get a focal point, thereby worsening visual ability in the long run. Such imperfections in bifocal lenses led to the subsequent development of trifocal eyeglasses. Trifocal eyeglasses include a lens in between the existing bifocal lenses to correct finger-tip distance vision.
Still, bifocal and trifocal lenses don’t correct unnatural vision in the event of a sudden change of focal point. Moreover, their focus is slow and the frames are uncomfortable. Not to mention the fact that the glasses are not very elegant. Nowadays, many people experience problems in adapting their vision to bifocal and trifocal lenses. Every year, thousands of bifocal and trifocal lens users experience injuries and accidents caused by false vision through the lenses.
The imperfections of bifocal and trifocal lenses has therefore led to the development of “progressive lenses” that eliminate the lines of bifocal and trifocal lenses, providing many focal points and thereby satisfying almost any visual need.
Nevertheless, progressive lens also have limitations. First of all, progressive lenses are quite expensive. Also they provides low-quality clarity of vision. Users may also find the correction unnatural, the focus slow and the frames uncomfortable. Every year, lots of people worldwide spend large sums of money on progressive lenses the quality and effectiveness of which is uncertain.
Now these problems have led to the development of an innovative technology that takes optical problem correction to a higher level – Super Digital 3 D Progressive Individual Lenses – state-of-the-art lenses now available in Thailand at ‘ISOPTIK’, The Hi-End Eyeglasses Centre.
Super Digital 3 D Progressive Individual Lenses at ISOPTIK are specially designed and developed to suit the specific eye conditions and visual problems of each individual. The latest 3D digital auto refractometer technology is used to check the eyes and lens condition to ensure utmost precision measurement – 25-times more precise than traditional measurement. Lenses and frames are customised for size and design according to the unique requirements of each user, resulting in clearer vision, six- times more flexible lenses, faster focus, natural vision correction, and comfortable wearing.
At ISOPTIK, every step of eye check-up and measurement is performed by a team of specialists, led by Khun Somboon Somboon Numtipjuntacharern aka “Master Bobi”. Visual needs in daily life, optical behaviour, and facial measurement are meticulously analysed to develop masterpiece lenses and glasses that match the user’s personal function and desire.