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Guide to Contact Lenses

by Rony's Admin on 10/05/2020

There can be many areas of motivation when you are deciding to switch from spectacles to contact lenses:

  • Cosmetic appeal
  • No adjustment issues unlike spectacles (fogging up of lenses, constant slipping, weight issues)
  • Contact lenses allow for a wider field of view
  • Contact lenses allows for natural viewing

Whilst contact lenses are a good alternative to glasses, it is ultimately a medical device on the eye and requires maintenance.

Contact lenses

Modality

Modality refers to the replacement schedule of the contact lenses. There are 3 types of modality:

  1. Dailies – To discard everyday
  2. Bi-weekly – To discard every 2 weeks
  3. Monthly – To discard every month

Daily contact lenses are the healthiest option where you get a fresh new pair of lenses everyday, however it is more price costly compared to the other two.

Bi-weekly and monthly lenses require additional contact lens solution to clean for the lenses, but are more cost savvy compared to dailies.

Material

There are basically two types of material : Hydrogel & Silicone Hydrogel.

The comfortable wearing hours for Hydrogel is maximum 8-10 hours while Silicone Hydrogel can be worn for a maximum of 12 hours as it allows for more oxygen permeability.

However, silicone hydrogel material is known to be slightly rigid compared to hydrogels.

methods of wearing contact lenses

General Dos & Donts

Dos

  • Always wash your hands before handling your contact lenses.
  • Always discard your lenses according to the replacement schedule of the lenses.
  • Contact lens casings have to be washed and air-dried daily, discard after 3 months maximum.
  • Keep your nails short to prevent tearing/scratching the lenses, to prevent hurting your eyes as well.
  • Rub your lenses (bi-weekly & monthly) before and after wearing your lenses.
  • For the ladies, always put on your contact lenses before doing your makeup and before removing your makeup to prevent contamination.

Don’ts

  • Do not sleep, swim & shower with your contact lenses.
  • Do not wash contact lenses with tap water.
  • Do not place your contact lens case & solution in the washroom.
  • Do not reuse solutions, change fresh solutions everyday.
  • Do not wear your contact lenses when you are sick (prevent spread of bacteria).
  • Cease lens wear immediately if you feel discomfort and pain upon lens wear.

For first time contact lens wearers, it is advisable to learn the proper way of insertion and removal of contact lenses through your optometrist. Unsure? Speak to EyeSight on WhatsDoc now!

References:

1. Guide to contact lenses 

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