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Figure 1.0 - Basic anatomical features of the human eye. Ophthalmic drug administration is the administration of a drug to the eyes, most typically as an eye drop formulation. Topical formulations are used to combat a multitude of diseased states of the eye. These states may include bacterial infections, eye injury, glaucoma, and dry eye. [1]
Eye drops or eyedrops are liquid drops applied directly to the surface of the eye usually in small amounts such as a single drop or a few drops. Eye drops usually contain saline to match the salinity of the eye. Drops containing only saline and sometimes a lubricant are often used as artificial tears to treat dry eyes or simple eye irritation ...
Visine (/ ˌ v aɪ ˈ z iː n /), also known as Vispring, is a brand of eye drops produced by Kenvue. [1] Visine was first introduced in 1958 and was acquired by Pfizer in 1999. [2] [3] In 2006, Johnson & Johnson acquired Visine, along with Pfizer's entire consumer healthcare portfolio. [4]
A dry sample is collected with a swab or filter paper. A few drops of alcohol, then a few drops of phenolphthalein, and finally a few drops of hydrogen peroxide are dripped onto the sample. If the sample contains hemoglobin, it will turn pink immediately upon addition of the peroxide, because of the generation of phenolphthalein. A positive ...
Phenolphthalein is an indicator for pH. The color will transition from clear to fuchsia (magenta) over a range of about 8.0–9.6. In solutions with pH above about 10, the indicator will turn the solution magenta. In solutions below about 8 (which includes all acids and neutral solutions), the solution will remain clear.
Artificial tears are lubricating eye drops used to relieve dryness and irritation of the ocular surface. [1] Dry eye syndrome (keratoconjunctivitis sicca) is a common ocular surface disorder and is characterized by disruption of the tear film and increased inflammation.
Dilated fundus examination (DFE) is a diagnostic procedure that uses mydriatic eye drops to dilate or enlarge the pupil in order to obtain a better view of the fundus of the eye. [1] Once the pupil is dilated, examiners use ophthalmoscopy to view the eye's interior, which makes it easier to assess the retina , optic nerve head , blood vessels ...
It is used as eye drops or applied to the skin. [4] [5] It is also available in the fixed-dose combination medication brimonidine/timolol along with timolol maleate. [6] Common side effects when used in the eyes include itchiness, redness, and a dry mouth. [4] Common side effects when used on the skin include redness, burning, and headaches. [5]
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