There are many eye problems
such as dry eye and itching, for which eye drop and ointment are important. Eye drop and ointment are available both in over-the-counter (OTC) type and prescription type. Eye drops can ease many more eye problems, including redness, allergies, soreness, swelling, mattering, and infections.
Both internal and external factors can cause dry eyes, such as tired body, prolonged computer use, windy environment and sunny conditions. Common OTC eye drops can simply provide relief for temporary dry eye caused by these factors. OTC eye drops add various tear elements in your eyes and make them perform better, while decongestant eye drops function by shrinking the outer blood vessels in your eyes’ white parts.
Chronic or long-term dry eyes can be caused by aging, decongestants, diuretics and antidepressants, which determine the type of eye drops you should choose. A gel or ointment either in preserved or non-preserved form is always used to cure long-term dryness. People use gels need several minutes to recover clear vision so that most of the people use gels only before sleeping. For severe dry eyes, some special OTC ointments and prescription eye drops may be prescribed by your doctor.
Conventional decongestant eye drops are commonly used to relieve red eyes, by shrinking the blood vessels. However, this type of eye drops only masks the problem by making the eyes whiter. In fact, frequent use of decongestants can increase dryness and make the patient addictive to them. Many reasons may contribute to red eyes, such as tiredness, dryness, lack of sleep and irritation. An OTC lubricating drop is commonly recommended for red eyes.
Itchiness is a common symptom for many people, most of which may rub their itchy eyes and make them itchier, because the eyes will release a chemical named histamine. The right solution to address itchiness caused by allergies is to use types of OTC drops. Those antihistamine drops such as Alaway and Zaditor can reduce histamine in the eye tissues so that itchiness can be eased.
Prior detection of the reason that causes eye soreness is critical before you choose eye drops. If your eyes are dry, tired or overused, soreness may happen, which can be worsen after being rubbed. Crying and eye discharge may bring eye irritation, which can get relief from lubricating eye drops. Eye infection caused yellowish eye discharge requires prescription antibiotic eye drops.
Lubricating eye drops are also prescribed for pink eye, which may be a sign of bacterial conjunctivitis, viral conjunctivitis or allergic conjunctivitis. Bacterial conjunctivitis has signs such as red eye and yellow discharge and should be treated with Rx antibiotic eye drops. Viral conjunctivitis is contagious and causes red, watery, sore eyes and whitish discharge. For light viral conjunctivitis, common OTC drops are enough, while severe conditions require a doctor’s visit. Another common reason that causes eye redness, itching, swollen lids and bloodshot eyes are allergic conjunctivitis, which is not contagious and can be cured with antihistamine drops or cold ice packs.
Proper OTC drops are always competent for most eye problems, but patients must see a doctor for severe conditions.
this article is come from:http://vision.firmoo.com/buying-options/otc-and-prescription-eye-drops-and-ointments.html