HOW CAN OVERNIGHT VISION CORRECTION HELP ME AVOID READING GLASSES?
If you are short-sighted, now need reading glasses and want to find an alternative then overnight vision correction could be for you.
Overnight contact lenses work by flattening the surface over the pupil to form a "treatment zone". The cells in this area are redistributed around the edge to form microscopic raised ring. This is a bonus in short-sighted people because not only do the lenses correct your distance vision, the raised area creates a "plus effect" on the eye, helping you to do things like read. The brain adjusts to use this area to read with and this delays the need for reading glasses.
Eventually, as presbyopia progresses the "plus effect" caused by the contact lenses will not be strong enough and at this point you have the option to switch to iGO Monovision.
WHAT ARE MONOVISON CONTACT LENSES AND HOW DO THEY WORK?
Monovision involves correcting both eyes for distance. Once this is achieved then the wearer can move to monovision. This involves sleeping in only one contact lens in the dominant eye (normally the right eye in right handed people). The dominant corrected eye is used to view distant objects. The uncorrected eye is used for reading and close up work.
WHY DO I NEED READING GLASSES?
Everybody will need reading glasses eventually - it cannot be avoided because it is an age-related problem. While shortsightedness where an individual has difficulty seeing distant objects affects about a third of the UK population, presbyopia which is where an individual needs glasses to read and do close work, is a condition affecting most people from the age of 40 onwards. However, with overnight vison correction you can delay the need for reading glasses until much later and when eventually age does catch up with you, there is a further option to switch to monovision contact lenses.
Find out if you are suitable for i-GO Overnight Vision Correction
WHAT IS PRESBYOPIA?
Presbyopia is caused by a loss of elasticity in the lens of the eye and in the muscles around the lens. Like other parts of the body, the eyes are subject to wear and tear as they age and they progressively become less able to switch from looking at distance objects to focus on objects close by. It is refered to as "a loss of accomodation" and is best illustrated by thinking of your eye as a telescope looking into the horizon and then winding it in to look at something very near. We do this without thinking all day long but the eye finds it more and more difficult to produce sharp images needed for activities like reading, especially in low lighting conditions.