5 Questions
What is the purpose of the clear fluids in the eye ball?
To transmit light to the retina
What is the normal range of eye pressure in mmHg?
12-23 mmHg
What is the primary effect of increased eye pressure?
Restriction of blood supply to the retina
What is the condition called when there is a partial blockage of the eye's drain system, leading to increased eye pressure?
Glaucoma
How can eye pressure be measured?
Both a and b
Study Notes
Eye Pressure
- The clear fluids in the eye ball, namely aqueous and vitreous humors, transmit light to the retina and maintain the eye ball in a fixed size and shape.
- Normal eye pressure helps to maintain good vision, with only a 0.1 mm change in diameter.
Importance of Eye Pressure
- Partial blockage of the drain system can increase eye pressure, restricting blood supply to the retina and affecting vision.
- This condition is called glaucoma, which can lead to:
Effects of Glaucoma
- Moderate vision loss
- Severe vision loss, including tunnel vision and blindness
Measuring Eye Pressure
- Physicians can estimate eye pressure by feeling the eye with their fingertips.
- Eye pressure can be measured using a tonometer.
- Normal eye pressure ranges from 12-23 mm.Hg.
Test your knowledge about eye pressure and its impact on vision. Learn about the clear fluids in the eye ball that maintain its shape and size, and how changes in pressure can affect vision clarity and blood supply to the retina.
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