Progressive Lens In Bangladesh
How Progressive Lenses Work?
Progressive lens, also called a multifocal lens, 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 portrayed by an inclination of expanding focal point power, added to the wearer’s revision for the other refractive blunders.
The expansion esteem recommended relies upon the degree of presbyopia of the patient.
If you’re over age 40 and struggling to see small print with your current glasses, you probably need multifocal lenses.
No worries — that doesn’t mean you have to wear ugly bifocals or trifocals. For most people, line-free progressive lenses are a much better option.
Adapting to Progressive Lenses
While most people adapt to the lenses fairly quickly, for some, getting comfortable vision with progressive lenses can take a few days. This is normal as you need to train your eyes to look through the appropriate area of the lens and get used to the slight adjustments when you move from one area to another especially if you move your head quickly.
Types of Progressive Lenses
There are a number of options for progressive lenses that vary in style, price, and function.
These lenses must fit your vision needs. Otherwise only a small area will remain for the distance or near vision zones.
Short Corridor PALS
A PAL designed specifically for small “B” dimension frames. Custom designed by optical scientists to shorten a corridor without sacrificing optical quality.
For computer users that work at a computer for many hours, these lenses will help to reduce eye strain, eye fatigue, and other symptoms of computer vision syndrome that come from looking at a computer for extended periods.
PALs For Reading
Individuals who enjoy reading can opt for a pair of lenses with a larger close vision zone. Free-form lenses offer a customizable surface with a wider area for near vision. Progressive lenses are a great option for most individuals who require multifocal or reading glasses and still want to maintain a youthful look and appearance.
Speak to your eye doctor about your specific needs and lifestyle to find the best option for you.
Advantages & Use
Compared to single vision lenses, progressive lenses provide the correction required for a presbyopic patient to see clearly at all viewing distances, typically adjusted by tilting the head slightly.
Progressive addition lenses avoid the discontinuities (image-jumps) sometimes found with bifocal and trifocal lenses
Some people find them more cosmetically attractive.
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