What is Monovision?
Around the age of 40, the aging eye starts to lose accommodation for seeing up close like for reading or sewing. This condition is called presbyopia. Before the age of 40 or so, the eye’s natural lens can change its convexity to focus on objects both near and far. As you age, the lens becomes stiffer and the small muscles controlling it become weaker, and that’s when you start reaching for bifocals or reading glasses to order from a menu.
Some choose to lessen the effects of aging with monovision. Monovision occurs when one eye is treated for distance vision and the other for near vision, thus eliminating dependence on reading glasses. Monovision can be achieved with contact lenses, laser surgery, Conductive Keratoplasty (CK) or multifocal lens implants, like ReSTOR or ReZOOM.
“I am so happy about the wonderful results of my Lasik eye surgery. I can see so great. No more contacts or glasses. Thank you so much.”
Who is a candidate for Monovision?
Anyone desiring to be free from the dependence of reading glasses or bifocals may be a candidate. Before you commit to a permanent solution like laser vision correction or lens implants, some doctors recommend trying monovision with contact lenses first. You’ll be fitted with one contact lens for distance vision and one for near vision. You can experience the sensations and new vision and see if you are comfortable before moving forward with other, more permanent, methods.
What are my options for Monovision?
There are many solutions available for you to consider. You can achieve monovision through contact lens, laser vision correction, CK, a combination of LASIK and CK or multifocal lens implants. Your doctor will make recommendations about what’s best for you after your full evaluation.
What is Blended Vision?
Blended vision is a modified type of monovision, where laser surgery is performed to make your non-dominant eye somewhat nearsighted. Your dominant eye does well for distance vision, and now your non-dominant eye sees well for near vision. The brain “blends” these two sets of information together so that you’re not conscious of having different visual ability in each eye.
It differs from monovision in that your two eyes are more similar to each other (up to 1.5D difference, whereas in monovision they’ll be from 1.5D to 3 D different). That enables the brain to blend their information more easily.
You can give it a trial run by wearing trial contact lenses.