Factors causing short-term changes in intra-ocular pressure, Biology

Assignment Help:

What Factors causing short-term changes in intra-ocular pressure

1) Arterial blood pressure

2) Systemic venous pressure (SVP)

3) Mechanical pressure

4) Plasma osmolarity: Hyper-osmolarity due to mannitol makes intra-ocular pressure lower.

5) Blood pH : Metabolic acidosis by carbonic anhydrase inhibitors like acetazolamode reduces intra-ocular pressure.

6) Diurnal variation in intra-ocular pressure:

- Normal 5 mm Hg

- >8 mm of Hg - glaucoma

- 5 to 8 mm of Hg - glaucoma suspect

Normal peak in early morning and lowest in evening.

7) Seasonal variation

8) Systemic hyperthermia

9) Effect of general anaesthesia on intra-ocular pressure: Type of anaesthesia has role, so must be kept in mind while measuring inua- ocular pressure under GA. specially in children with congenital glaucoma.

In general, once the patient is under the effect of general anaesthesia: intra-ocular pressure is reduced.

10) Effects of drugs on intra-ocular pressure:

a) Alcohol, morphine products, lower etc.: intra-ocular pressure,

b) Steroids, caffeine, tobacco, LSD, etc.: increase intra-ocular pressure.

11) Blockage of the circulation of the aqueous -at pupil or at angle of anterior chamber: increase intra-ocular pressure.

 


Related Discussions:- Factors causing short-term changes in intra-ocular pressure

Define the word glycemic, Glycemic or sugar control The control of bloo...

Glycemic or sugar control The control of blood sugar is one of the most important factors of good care for the diabetic patient. It has been shown that good glycemic or sugar c

Ethylene - apical dominance, Ethylene - Apical Dominance Ethylene also...

Ethylene - Apical Dominance Ethylene also plays a role in the inhibition of lateral bud growth. It is present in those tissues like shoot apex where auxins are also present. I

Microfilaments - role of cytoskeleton structures, Microfilaments - Role of ...

Microfilaments - Role of Cytoskeleton Structures Microfilaments are as well present in all animal cells. They are found singly throughout the cytoplasm organized like a meshwo

Maintain nutrition in diarrhoea, Maintain nutrition Your responsibilit...

Maintain nutrition Your responsibility as a nurse is to take care of nutrition and prevent the child from starvation. Breast feeding'should be continued during the diarrhoea e

Tertiary prevention -community mental health programme, Tertiary Prevention...

Tertiary Prevention: In tertiary prevention, emphasis is placed on reducing disability resulting from illness. Tertiary prevention often means long term care. Disability may r

Concentration of noradrenergic cell bodies, The major concentration of nora...

The major concentration of noradrenergic (and adrenergic) cell bodies is found in locus ceruleus a nucleus in the reticular formation. The axons of these neurons project through t

Adults with infective endocarditis, Mitral valve prolapse (MVP) has emerged...

Mitral valve prolapse (MVP) has emerged as a prominent, predisposing structural cardiac abnormality and in adults accounts for 7 to 30 per cent of NVE in cases not related to drug

Define the magnesium requirements in body, Define the Magnesium Requirement...

Define the Magnesium Requirements in body? Let us learn about the magnesium requirements. Since plant foods are particularly high in magnesium, on a vegetarian diet with plenty

HOME, WHERE DOES LIZARD LIVE

WHERE DOES LIZARD LIVE

Staging of heart failure, In this unit you have learnt that heart failure i...

In this unit you have learnt that heart failure is one of the most common conditions seen and results in a high mortality. It can result from failure of the heart muscle as with co

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd