12th Zoology

Eye Infections and Eye Care

Eye Infections and Eye Care

Eye Infections

1. Stye

A stye is an acute infection of the glands located at the eyelid
margin. There is swelling, pain, itching and redness in a small area at the lid
margin. Treatment consists of using frequent warm compresses on the eye. (Eye Infections)

2. Conjunctivitis:

Infection in the conjuctiva is called conjunctivitis. Due to
the infection the invisible blood vessels within the conjunctiva become
engorged. Inflammation of the conjuctiva causes redness, discomfort and a
discharge from the affected eye. The most common causes for
conjunctivitis are infections (in children) and allergy (in adults). (Eye Infections)

2a. Infective conjunctivitis :

Most conjunctival infection are caused by
bacteria (e.g staphylococci) and are spread by hand-to-eye contact or by
viruses associated with a cold, sore throat, or illness such as measles, viral
conjunctivitis sometimes occurs in epidemics, spreading rapidly through
schools and other groups. (Eye Infections)

2b. Allergic conjunctivitis :

An allergic response of the conjunctive may be
provoked by a variety of substances including cosmetics (mascara),
contact lens cleaning solution and pollen. (Eye Infections)


All types of conjunctivitis cause redness, irritation,
itching, discharge and occasionally photophobia (abnormal sensitivity to bright light). In infective conjunctivitis the discharge contains pus and may cause
the eyelids to be stuck together in the morning. In allergy conjunctivitis the
discharge is clear and the eyelids are often swollen. (Eye Infections)


Warm water is used to wash away the discharge and remove
any crust on the eyelid. Infections are treated with eye drops or ointment
containing an antibiotic drug. Allergic conjunctivitis may be relieved by
use of eye drops containing an anti histamine drug. (Eye Infections)

Eye care

Eye is an important organ and it is to be taken care of.

1. Eye examination should be periodically done to determine the cause of
visual disturbance or other symptoms relating to the eye.

2. Foreign particles in the eye are very common and it may penetrate in the
eye ball. So care should be taken while removing the dust to avoid damage.

3. The retina should be periodically examined to assess conditions such as
hypertensive retinopathy for hypertension and diabetic patients.

4. Self medication should be avoided. A doctor should be consulted immediatly
if there is any sudden pain or blurry vision.

Related Topics in Zoology:

Bio Zoology All Important Topics

  1. Human Physiology Introduction

  2. Nutrition

  3. Carbohydrates Poly hydroxyaldehydes (or) ketones

  4. Proteins (Polypeptides)

  5. Lipids

  6. Vitamins – Functions Of Vitamins

  7. Deficiency of Vitamin

  8. Minerals – Water – Role of water

  9. Balanced diet

  10. Obesity

  11. Digestive System

  12. Dental Caries (Tooth decay)

  13. Root Canal Treatment

  14. Peptic ulcer

  15. Hernia and Types

  16. Appendicitis (Appendix)

  17. Gall Stones

  18. Hepatitis

  19. Fractures – Types of fractures

  20. Mechanism of fracture

  21. Dislocation of joints

  22. Arthiritis

  23. Rickets and Osteomalacia – Orthopedics

  24. Muscles

  25. Mechanism of muscle contraction

  26. Types of muscle contraction

  27. Myasthenia Gravis

  28. Respiration – Process of pulmonary respiration

  29. Mechanism of Breathing

  30. Regulation of Respiration

  31. Pneumonia Tuberculosis Symptoms Treatment

  32. Bronchitis – Acute bronchitis, Chronic Bronchitis Causes

  33. Circulatory System – Functioning of Human heart

  34. Cardiac Cycle

  35. Coronary blood vessel and its significance

  36. Myocardial infarction

  37. Angina pectoris

  38. Angiogram – Angioplasty

  39. Atherosclerosis

  40. Heart block Echo cardiography Heart Valves

  41. Rheumatic Heart Disease (RHD), ICCU – (Intensive Coronary Care Unit)

  42. Blood Pressure

  43. Heart transplantation

  44. Pulse rate

  45. Cardio Pulmonary Resuscitation (CPR)

  46. Blood – Composition of plasma – Blood cells

  47. Clotting of Blood or Haemostasis

  48. Thrombosis

  49. Nervous system Co-ordination systems

  50. The Brain – Fore Brain, Midbrain, Hindbrain

  51. Memory

  52. Sleep – Types of sleep

  53. Stroke – Brain haemorrhage

  54. Alzheimer – Meningitis (Brain fever)

  55. Conditioned reflex

  56. Electroencephalography EEG

  57. Right and Left brain concept

  58. Spinal cord functioning

  59. Chemical co-ordination – Functions of Endocrine glands

  60. Hypothalamus

  61. Pituitary gland – hormone

  62. Hormones of Neurohypophysis – vasopressin

  63. Thyroid gland

  64. Parathyroid Gland

  65. Pancreas

  66. Adrenal gland

  67. Gonads

  68. Receptor Organs – Eye

  69. Photochemistry of Retinal visual Pigments

  70. Errors of refraction

  71. Optometry – Retinopathy

  72. Cataract – Lens Replacement – Glaucoma – Nyctalopia

  73. Eye Infections and Eye Care

  74. Ear

  75. Mechanism of hearing

  76. Defects of the ear

  77. Hearing Aid – Noise pollution

  78. Skin and functions of skin

  79. Melanin functions

  80. Effects of solar radiation / UV radiation – Skin grafting

  81. Dermatitis

  82. Tongue – Mechanism of Stimulation

  83. Excretion Ureotelism Nephron

  84. Mechanism of urine formation

  85. Renal Failure, Dialysis, Kidney Machines

  86. Kidney stone – Kidney transplantation

  87. Diabetes mellitus

  88. Functioning of male reproductive system

  89. Functioning of female reproductive system

  90. Ovulation and fate of the ovum – Menstrual cycle

  91. Fertilization

  92. Birth control

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