Lecture15: Anterior/posterior Segments Of The Eye

Question 1

In the formation of AH, what is actively secreted?

Answer 1

Sodium ions

Question 2

What enzyme helps the active secretion of sodium ions in AH formation?

Answer 2

ATPase systems

Question 3

Explain the biochemics of AH formation?

Answer 3

Sodium pull chloride and HCO3 via an enzyme called Carbonic Anhydrase

Question 4

What do a1 adrenocepters do in AH reg?

Answer 4

They constrict ciliary vessels

Question 5

What do a2 adrenocepters do in AH reg?

Answer 5

Reduction of aqeuous secretion

Question 6

What do B2 adrenocepters do in AH formation?

Answer 6

They increase aqeuous secretion via increasing cAMP

Question 7

What spaces, does the drainage via uveoscleral outflow diffuse into?

Answer 7

Interstitial spaces

Question 8

In the reg of AH outflow what 2 things bind to EP and FP receptors to increase AQ outflow via ciliary muscle relaxation?

Answer 8

PGF2a and Prostaglandin analogues

Question 9

What is the Intraoccular pressure measured via?

Answer 9

Tonometry

Question 10

Which Drug gets the Iris and Sclera apart?

Answer 10

Pilocarpine

Question 11

Which drug lowers the IOP very quickly via fluid withdrawing through osmosis?

Answer 11

Mannitol

Question 12

Which drug acts via Carbonic Anhydrase inhibition?

Answer 12

Acetazolamide

Question 13

Which drug lowers AH formation? Via Beta Blocking??

Answer 13

Timolol

Question 14

Which drug is an Alpha 2 agonist?

Answer 14

Brimonidine

Question 15

Which drug is avoided in asthma and bradychardia?

Answer 15

Timolol