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Pros and Cons of different Types of Contact Lenses

Rigid gas-permeable (RGP)

Made of slightly flexible plastics that allow oxygen to pass through to the eyes.

Advantages Disadvantages
  • Excellent vision
  • Short adaptation period
  • Comfortable to wear
  • Correct most vision problems
  • Easy to put on and care for
  • Relatively long life
  • Available in tints (for handling purposes) and bifocals
  • Available for myopia control and corneal refractive therapy
  • Require consistent wear to maintain adaptation
  • Can slip off center of eye more easily than other types
  • Debris can sometimes get under the lenses
  • Require regular office visits for follow-up care

 

Daily-wear soft lenses

Made of soft, flexible plastic that allows oxygen to pass through to the eyes.

Advantages Disadvantages
  • Very short adaptation period
  • More comfortable and more difficult to dislodge than RGP lenses
  • Available in tints and bifocals
  • Available in lenses that do not need to be cleaned
  • Great for active lifestyles
  • Do not correct all vision problems
  • Vision may not be as sharp as with RGP lenses
  • Require regular office visits for follow-up care
  • Lenses wear out and must be replaced in a timely fashion

 

Extended-wear

Available for overnight wear in soft or RGP lenses.

Advantages Disadvantages
  • Can usually be worn up to seven days without removal
  • Some lenses are FDA-approved for up to 30 days
  • Do not correct all vision problems
  • Require regular office visits for follow-up care
  • Could increase risk of complication
  • Require regular monitoring and professional care

 

Extended-wear disposable

Soft lenses worn for extended period of time (usually one to six days), then discarded. Lenses also available to wear from one to 30 days.

Advantages Disadvantages
  • Require little or no cleaning
  • Lessened risk of eye infection if wearing instructions are followed
  • Available in tints and bifocals
  • Spare lenses available
  • Vision may not be as sharp as with RGP lenses
  • Do not correct all vision problems
  • Handling may be more difficult

 

Planned replacement

Soft daily-wear lenses that are replaced on a planned schedule, most often either every two weeks, monthly or quarterly.

Advantages Disadvantages
  • Simplified cleaning and disinfection
  • Good for eye health
  • Available in most prescriptions
  • Vision may not be as sharp as with RGP lenses
  • Do not correct all vision problems
  • Handling may be more difficult

 

 

Safety Tips for buying Contact lenses

 

 

 

How to choose sunglasses Some interesting Eye Facts

 

 

 

 

 

More Topics

Structure of Eye

Get Regular Eye Exams 

How to keep your Eyes Healthy

Have a Comprehensive Dilated Eye Exam

Foods to improve Your Eye Health

Common Vision Problems

Eye safety tips from computer screen Age-related Eye Diseases

 


 

Reference

http://www.webmd.com/eye-health/features/tips-for-healthy-eyes#3

https://nei.nih.gov/healthyeyes/eyehealthtips

http://kidshealth.org/en/kids/eyes.html#

http://www.allaboutvision.com/nutrition/foods.htm

http://www.bausch.com/vision-and-age/20s-and-30s-eyes/healthy-eyes

http://www.healthline.com/human-body-maps/optic-nerve

https://en.wikipedia.org/wiki/Human_eye

http://www.medicinenet.com/script/main/art.asp?articlekey=10609

http://www.aao.org/eye-health/tips-prevention/top-sunglasses-tips

http://www.aoa.org/patients-and-public/caring-for-your-vision/contact-lenses/advantages-and-disadvantages-of-various-types-of-contact-lenses?sso=y

http://www.everydayhealth.com/vision-center/lenses-and-beyond/contact-lens-options.aspx

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