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Questions and Answers
What is the main difficulty in topical administration of drugs to the human eye?
What is the main difficulty in topical administration of drugs to the human eye?
- The presence of blood vessels in the cornea
- The permeability of the cornea
- The anatomical arrangement of the surface tissues (correct)
- The color and clarity of the cornea
Which gland secretes tears that contain mineral salts, glucose, and protein?
Which gland secretes tears that contain mineral salts, glucose, and protein?
- Sebaceous glands
- Salivary glands
- Sweat glands
- Lachrymal glands (correct)
Which part of the eye responds to surrounding light, controlling the size of the pupil?
Which part of the eye responds to surrounding light, controlling the size of the pupil?
- Cornea
- Retina
- Lens
- Iris (correct)
Which type of drug is used to dilate the pupil?
Which type of drug is used to dilate the pupil?
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What type of drugs are used for reducing intraocular pressure?
What type of drugs are used for reducing intraocular pressure?
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Study Notes
Topical Administration of Drugs to the Eye
- The main difficulty in topical administration of drugs to the human eye is the complexity of the eye's anatomy and the dynamic nature of the tear film.
Tears Composition
- Tears contain mineral salts, glucose, and protein, and are secreted by the lacrimal gland.
Pupil Regulation
- The iris is the part of the eye that responds to surrounding light, controlling the size of the pupil.
Pharmacological Interventions
- Mydriatic drugs are used to dilate the pupil.
- Ocular hypotensive drugs are used to reduce intraocular pressure.
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