5 Contact Lens Technologies for Long-Lasting Comfort


Discomfort is one of the most common problems for contact lens wearers. In fact, recent studies have found that discomfort is the main reason for contact lens discontinuation.

Leading manufacturers incorporate certain technologies into their contact lenses to relieve and prevent discomfort. The technologies may work in different ways, but they all provide the same thing: a comfortable lens-wearing experience for users.

On that note, here are five technologies that help to keep contact lenses comfortable all day:

1. SmartShield® Technology

Source: Alcon

SmartShield Technology is a patented technology developed by Alcon, the global leader in eye care. SmartShield Technology creates an ultra-thin protective layer around the lens to help it stay wet and resist irritating deposits.

Deposits are detrimental to successful contact lens wear because they can reduce lens surface wettability. Deposits can also increase the wearer’s risk of developing contact lens-related complications, like microbial keratitis.

SmartShield Technology is unique to Alcon’s AIR OPTIX® portfolio, which includes:

  • AIR OPTIX for Astigmatism
  • AIR OPTIX AQUA Multifocal
  • AIR OPTIX plus HydraGlyde®
  • AIR OPTIX plus HydraGlyde for Astigmatism
  • AIR OPTIX plus HydraGlyde Multifocal

2. SmarTears® Technology

SmarTears Technology
Source: Alcon

SmarTears Technology is a patented wetting technology developed by Alcon. It helps the lens stay moist by releasing phosphatidylcholine (PC), an ingredient found in tears. PC helps to stabilize the lipid layer of the eye’s tear film — the thin fluid layer “bathing” the cornea (the eye’s clear, protective outer layer).

A stable tear film is an indicator of a healthy eye. Without the lipid layer of the tear film, the tear film would lose moisture 20 times faster. As such, contact lenses with SmarTears Technology are ideal for contact lens wearers with sensitive eyes and those who are prone to dry eyes.

SmarTears Technology is implemented in Alcon’s DAILIES TOTAL1® portfolio, which includes:

  • DAILIES TOTAL1 for Astigmatism
  • DAILIES TOTAL1 Multifocal

3. MoistureSeal™ Technology


MoistureSeal Technology is a proprietary wetting technology developed by Bausch + Lomb, a leading global eye health company. MoistureSeal Technology helps the lens maintain 95 percent of its moisture for a full 16 hours.

MoistureSeal Technology was made through a unique process that grows polyvinylpyrrolidone (PVP). PVP is a wetting agent used in contact lenses and eye drops to increase wettability and moisture retention. As a result of the unique PVP growing process, contact lenses with MoistureSeal Technology reportedly have four times more PVP than other silicone hydrogel contact lenses.

MoistureSeal Technology is unique to Bausch + Lomb’s ULTRA portfolio, which includes:

  • ULTRA for Astigmatism
  • ULTRA for Presbyopia

4. LACREON® Technology

Source: Johnson & Johnson

LACREON Technology is a proprietary technology developed by Johnson & Johnson, the world’s largest health care company. It provides all-day comfort by embedding PVP into the lens material.

LACREON Technology also helps to establish a stable tear film over the surface of the lens, keeping the eyes fresh throughout the day. Additionally, LACREON Technology gives the lens a smooth surface so that the eyelid can easily glide over the lens.

LACREON Technology was introduced in 2006. Today, it is implemented in Johnson & Johnson’s 1-DAY ACUVUE® MOIST portfolio, which includes:

  • 1-DAY ACUVUE MOIST for Astigmatism
  • 1-DAY ACUVUE MOIST Multifocal

LACREON Technology is also implemented in 1-DAY ACUVUE DEFINE® contact lenses.

5. AquaComfort Plus®

AquaComfort Plus is a proprietary wetting technology developed by Alcon. It uses three wetting agents to ensure a stable pre-lens tear film, namely:

  • Hydroxypropyl methylcellulose – This wetting agent belongs to the group of medicines known as artificial tears. It helps relieve dryness and irritation caused by reduced tear flow.
  • Polyethylene glycol – Polyethylene glycol is a water-loving polymer used in lubricating eye drops. It is also widely used as an additive in pharmaceuticals, cosmetics, and food.
  • Polyvinyl alcohol – Polyvinyl alcohol is a water-soluble polymer that’s released into the tear film to ensure a comfortable contact lens-wearing experience. Polyvinyl alcohol is also widely used to treat textiles and paper.

A stable pre-lens tear film is essential for successful contact lens wear for three reasons. First, the pre-lens tear film provides a uniform coating over the contact lens. Light would scatter if this layer were rough or irregular. Second, the pre-lens tear film provides comfort and lubrication to the inside of the eyelids. Finally, the pre-lens tear film keeps the lens moist.

AquaComfort Plus was introduced in 2008 as part of the rollout of the DAILIES® AquaComfort Plus portfolio, which includes:

  • DAILIES AquaComfort Plus
  • DAILIES AquaComfort Plus Toric
  • DAILIES AquaComfort Plus Multifocal


If comfort is a top priority for you, talk to your eye care professional about trying contact lenses featuring any of the technologies listed above. Once you have a valid prescription, order your contact lenses from Lens.com and take advantage of our discount prices.