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Contact lenses are becoming an increasing popular means of vision correction. Even those who are happy to wear glasses find that there are occasions when they would rather be able to wea

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

r contact lenses.

There are a number of Contact Lens Health and Lifestyle questionnaires that can give you a pretty good idea of your likely success at wearing lenses. Your responses ar

; or drug, device, and biological product and fixed dose combination would include two or more combinations of drug.

Examples of combination products may in

e scored on a number of factors such as the environment in which you live, your health status and the general sensitivity of your eyes.

As an optometrist with over 20 years experience i

lude drug-coated devices, drugs packaged with delivery devices in medical kits, and drugs and devices packaged separately but intended to be used together.

fitting contact lenses I would like discuss some issues that don’t come up in Contact Lens Health and Lifestyle questionnaires, but which are very important for successful lens wear.

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here is enormous increase in the number of combination products entering the market in the recent years. Combination products have proven advantages but fixe

b>How squeamish are you about touching your eye?

There are some perfectly good candidates for contact lenses who could be very successful wearers but they just clamp their eyelids s

d dose combinations are still in the process of convincing regulatory authority on their advantages over the single ingredient formulations.

Combination pro

ut as a lenses approaches. Usually men have more problems than women because they are not used to applying eye make up. I have had huge sportsmen faint and slump to the floor as I have d

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

elicately tried to prise the lids open to get a lens in.

The way to desensitise yourself is to practice touching the white part of your eye with a freshly washed finger.

How good ar

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

e you with small fiddly things?

Inserting and removing contact lenses requires both a knack and a reasonable amount of manual dexterity. Now you don’t have to be a concert pianist o

nation products and maximize the revenues. But the companies involved in this practice are overlooking that they are burdening the patients both economically

a brain surgeon but you do need to have some feeling and flexibility in the fingers. If your hands are steady enough to thread a needle and do up small buttons you probably have what it

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

takes.

How bad are your eyes when you take your glasses off?

In order to put contact lenses in you will need to take your glasses off. There comes a tricky moment when you need

ts. Some of the combination products were well accepted by physicians while others suffered. Companies involved in development of combination products are fi

to see to put the lens but you haven’t got any eye correction. If you are shortsighted then you can often just get closer to the mirror to see what you are doing. If you are longsighted

ding difficulty in defining their combination products and facing various challenges from selecting a combination to marketing it.

Following aspects would a

then it can often just be one big blur and then you have to be good at “feeling” your way around.

How narrow are your eyes?

If you have particularly deep set or narrow eyes then

dd to the challenges in developing combination products:

Which markets to tap where the combination products can do fairly well?
Which combination prod

it can be a bit of a mission to insert and remove lenses. There are techniques you can use to overcome narrow eyes but it is a little tricker.

Are you a lazy eye blinker?

Many

cts are meaningful and rational?
Which therapeutic categories to select?
Which Combinations can address unmet needs of the patients?
Do combin

otential contact lenses wearers don’t blink often enough or completely enough. This often seems to come from computer use. Typically when looking at a computer screen we blink less and o

tions increase the patient compliance?
What would be the developing cost?
How to tackle the risks encountered during combination product developmen

ften half flutter the lids closed rather than doing a proper closed eye blink.

If you have ever experienced dry burning irritated eyes when using a computer, this may be a sign that you

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

are not blinking properly.

There are three ways to improve your blinking:

• Forced blinks: On the hour, every hour do 10 forced blinks. If you have a digital watch you can set t

ping new procedures for reviewing their safety, efficacy and quality.

Professional from academic institutions, pharmaceutical industries, health care indust

he timer to beep on the hour as a reminder. This works in about 15% of people.

• Momentary blackness. On your schedule do 4 blinks, where you are aware of a moment of blackness. Many wi

y and representatives from various regulatory agencies are working out to design the regulatory requirements for manufacture and sale of combination products

th dry eye just flutter their lids only half closed when they blink. By seeing a moment of complete blackness you will be training your lids to close completely.

• Finger twitch. Rest y

.

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

ur index finger on the outside edge of your eyes while watching TV and be aware of the muscles under the skin near your eyelids twitching your fingers as you blink. This technique helps

elopment. They need to be wiser in analyzing the market trends and the regulatory requirements.

Companies that provide selfless information through particip

to raise awareness of blinking.

If you have passed this self evaluation and also the Contact Lens Health and Lifestyle questionnaire then you are probably a good candidate for lens wear

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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