Disposable Lenses
Disposable lenses are ones which are thrown
away at regular intervals and replaced. They come in a wide range
of powers and types including astigmatism correction, multifocals,
overnight wear and coloured.
Disposable Soft
Most soft lenses are now supplied in this form.
They come in daily, weekly, fortnightly or monthly replacement packs. |
| |
| DISPOSABLE TYPE |
ADVANTAGES |
| Daily |
The
most convenient and hygienic option.
No cleaning - just wear them once and then throw them away.
|
| Weekly / Fortnightly |
Lenses
are discarded before stubborn deposits have had a chance to
take hold.
They provide a nice balance between hygiene, comfort and cost.
|
| Monthly |
The
most economical option for full time wearers.
Available in a wider range of materials and powers than the
other disposable types. |
| Three month, Six month or Annual |
These are for those whose prescriptions
are not available in the other disposable options. |
|
| |
Disposable
(Frequent Replacement) Gas Permeable Lenses
Because Gas Permeable lenses are more deposit
resistant they do not need to be changed as frequently as soft.
However the surface quality still degrades with time and for long
term comfort and health it is still advisable to change them regularly.
Currently, three monthly, six monthly and annual disposable Gas Permeable
replacement lens schemes are available. |
|
|
