Monovision, also called blended vision, is a clever approach to seeing clearly at all distances. We correct one eye for distance vision and the other eye for near vision. Your brain learns to blend the two images seamlessly, so you can see well whether you're looking at something far away or reading a menu up close. It's like having custom glasses in each eye. The beautiful part is that monovision works with many different procedures: LASIK, PRK, cataract surgery, RLE, and even contact lenses.
Your dominant eye is typically set for distance vision. Your non-dominant eye is set for near vision. When you're looking at something far away, your dominant eye does most of the work. When you're reading or doing close work, your non-dominant eye takes over. Your brain is incredibly smart and automatically switches between them without you thinking about it. This is called accommodation or blending. Some people pick it up immediately, while others need a few days to adjust. The key to success is that your brain can adapt to this setup.
Here's something important: we always recommend trying monovision with contact lenses before you commit to a surgical procedure like monovision LASIK or RLE. Contact lenses let you test whether monovision works for you without any permanent changes. Your eye doctor can try different combinations of which lens goes in which eye. If monovision feels natural and clear to you with contacts, it's a great sign that you'll love monovision surgery. If you're not comfortable with it after trying contacts, we'll explore other options that might work better for you.
Monovision can be done with LASIK where we reshape your cornea differently in each eye. With cataract surgery and RLE, we implant monofocal IOLs set for different focal points in each eye. The principles are the same across all procedures: one eye for distance, one for near. With monovision, you might not need glasses at all, or you might just wear reading glasses occasionally for very fine print. Many patients find this trade-off excellent because they've regained the ability to see both far and near without heavy dependence on glasses.
Monovision works well for people who are willing to embrace a slight compromise in exchange for broad-range vision freedom. Some people absolutely love it and wonder why they didn't do it sooner. Others find they prefer multifocal glasses or lenses instead. The test with contact lenses tells us which group you'll be in. Monovision can be more affordable than multifocal procedures because we use single-focus lenses. Your surgeon will help you decide if monovision, multifocal lenses, or another solution is best for your eyes and lifestyle.