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Advice Pool - Contact Lenses: The Difference Between Hard and Soft Lenses
For those looking to buy contact lenses the different products available are as daunting as they are varied
According to USFDA, a combination product is one composed of any combination of a drug and device; biological product and device; drug and biological product
. They can choose from daily disposables, monthly wear lenses, fortnightly contacts and even lenses that ca
; or drug, device, and biological product and fixed dose combination would include two or more combinations of drug.
Examples of combination products may in
Examples of combination products may in
turn your eyes from green to brown or from blue to grey! And then of course when you think it hasn’t got c
lude drug-coated devices, drugs packaged with delivery devices in medical kits, and drugs and devices packaged separately but intended to be used together.
mplicated enough, there’s the question of hard and soft lenses!
With so many choices how do you go about c
With so many choices how do you go about c
here is enormous increase in the number of combination products entering the market in the recent years. Combination products have proven advantages but fixe
oosing the right contact lenses for you? In this article we try and explain the key differences between har
d dose combinations are still in the process of convincing regulatory authority on their advantages over the single ingredient formulations.
Combination pro
Combination pro
and soft lenses to make the right decision for you.
Hard Contact Lenses
Hard contact lenses made from a
Hard Contact Lenses
Hard contact lenses made from a
ucts have become life saving products for the pharmaceutical companies who doesn’t have many innovative molecules in their product pipeline and have been inc
igid material which makes them much more durable than soft lenses.
Rigid gas permeable lenses are the late
easingly used in the product life cycle management. Even the companies having product patents are trying to extend their product life cycle through the combi
t type of hard lenses to hit the market. They are made from silicone polymers which allow oxygen to flow to
nation products and maximize the revenues. But the companies involved in this practice are overlooking that they are burdening the patients both economically
the cornea in order to make them more comfortable to the wearer.
These lenses can be worn on an extended b
These lenses can be worn on an extended b
and physically. They need to rightly judge the benefits of the combination products and they have to even look at the risks involved when combining the produ
sis; even whilst you are asleep! Having said this it is important to note that this can restrict the flow o
ts. Some of the combination products were well accepted by physicians while others suffered. Companies involved in development of combination products are fi
oxygen to your eyes.
Furthermore, hard lenses keep their shape in a way that soft lenses are unable to do
ding difficulty in defining their combination products and facing various challenges from selecting a combination to marketing it.
Following aspects would a
Following aspects would a
and tend to last longer and be more straightforward to look after. They also offer better sight correction
dd to the challenges in developing combination products:
Which markets to tap where the combination products can do fairly well?
Which combination prod
Which markets to tap where the combination products can do fairly well?
Which combination prod
for certain vision problems.
The downside to hard contact lenses is that they can take a bit of time getti
The downside to hard contact lenses is that they can take a bit of time getti
cts are meaningful and rational?
Which therapeutic categories to select?
Which Combinations can address unmet needs of the patients?
Do combin
Which therapeutic categories to select?
Which Combinations can address unmet needs of the patients?
Do combin
g used to.
Soft Contact Lenses
Soft contact lenses are formulated using of a special plastic polymer that
Soft Contact Lenses
Soft contact lenses are formulated using of a special plastic polymer that
tions increase the patient compliance?
What would be the developing cost?
How to tackle the risks encountered during combination product developmen
What would be the developing cost?
How to tackle the risks encountered during combination product developmen
is able to combine with water. This enables more oxygen to pass through the lens which increases the level
t?
As combination products don't fit into the traditional categories of drugs, medical devices, or biological products, the USFDA is in the process of devel
As combination products don't fit into the traditional categories of drugs, medical devices, or biological products, the USFDA is in the process of devel
f comfort that they offer to the wearer.
A number of soft lenses available can be discarded which is benef
A number of soft lenses available can be discarded which is benef
ping new procedures for reviewing their safety, efficacy and quality.
Professional from academic institutions, pharmaceutical industries, health care indust
Professional from academic institutions, pharmaceutical industries, health care indust
cial from a health perspective as it reduces the risk of infection. Of course this can also make them easie
y and representatives from various regulatory agencies are working out to design the regulatory requirements for manufacture and sale of combination products
to look after because users do not have to worry about cleaning them.
The disadvantage with soft contact
The disadvantage with soft contact
.
As there is an increasing trend of the combination products companies manufacturing such products should be able to tackle the problems involved in the de
As there is an increasing trend of the combination products companies manufacturing such products should be able to tackle the problems involved in the de
enses is that they are much more fragile than hard lenses and more prone to tearing. Furthermore because th
elopment. They need to be wiser in analyzing the market trends and the regulatory requirements.
Companies that provide selfless information through particip
Companies that provide selfless information through particip
y absorb soap easily they can irritate your eyes if you don’t rinse your hands carefully after washing them
tion in industry events and feedback to regulatory authorities would be able to face the challenges and will be successful in developing combination products
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