If you’re finding it hard to see clearly, it may be time for a pair of lenses or eyeglasses. We use our eyes all the time, from the time we wake up until we go to sleep at night, we watch, read and perceive objects. This is why it is essential to choose the perfect pair of lenses for yourself, as whatever you do, they will be helping you see.
Myopia (nearsightedness) is a vision condition in which close objects are seen clearly, but objects farther away appear blurred. Nearsightedness occurs if the eyeball is too long or the cornea, the clear front cover of the eye, has too much curvature. As a result, the light entering the eye isn’t focused correctly and distant objects look blurred.
Hyperopia (farsightedness) is a vision condition in which distant objects are usually seen clearly, but close ones do not come into proper focus. Farsightedness occurs if your eyeball is too short or the cornea has too little curvature, so light entering your eye is not focused correctly.
Astigmatism (uneven focusing of light) a vision condition that causes blurred vision due either to the irregular shape of the cornea, the clear front cover of the eye, or sometimes the curvature of the lens inside the eye. An irregular shaped cornea or lens prevents light from focusing properly on the retina, the light sensitive surface at the back of the eye. As a result, vision becomes blurred at any distance.
Presbyopia (ability to see near) is a condition associated with the aging of the eye that results in progressively worsening ability to focus clearly on close objects. Symptoms include difficulty reading small print, having to hold reading material farther away, headaches, and eyestrain. Different people will have different degrees of problems. Other types of refractive errors may exist at the same time as presbyopia.
Single vision lenses are lenses with only one dioptric power. They are primarily used for single power distance or reading spectacles. As single vision reading lenses often cannot provide presbyopes with acceptable visual quality at intermediate distances, they are now increasingly being replaced by so-called proximity lenses for more than the close range.
Computer vision lenses are designed for the daily needs of the workplace. With a larger section of the lens dedicated to your near and intermediate-distance vision, these task-oriented lenses help improve visual performance, reduce eye strain, and alleviate ergonomic discomfort in the office. The computer vision lens also incorporate anti-bluelight to counter the harmful blue light emitted by the LED computer screen.
The office Lens offers maximum intermediate distance, people whom spend a lot of their time indoors, e.g. when they work in an office or are doing things at home. For these everyday situations requiring near to intermediate vision, not every lens allows relaxed and clear vision. Unsuitable lenses can limit our vision and cause symptoms such as eye fatigue, eyestrain, headaches, neck and back pain.
Progressive lenses, also called multifocal lenses, progressive addition lenses (PAL), varifocal lenses, progressive power lenses, graduated prescription lenses, or progressive spectacle lenses are corrective lenses used in eyeglasses to correct presbyopia and other disorders of accommodation. They are characterised by a gradient of increasing lens power, added to the wearer's correction for the other refractive errors. The gradient starts at the wearer's distance prescription at the top of the lens and reaches a maximum addition power, or the full reading addition, at the bottom of the lens. The length of the progressive power gradient on the lens surface depends on the design of the lens, with a final addition power between 0.75 and 3.50 dioptres. The addition value prescribed depends on the level of presbyopia of the patient. In general the older the patient, the higher the addition.