Trauma

Question 1

Effects of Intraocular haemorrhage

Answer 1

1. Hyphaema (acute glaucoma, chronic glaucoma, corneal staining)
2. Haemosiderosis bulbi
3. Ghost cell glaucoma
4. Vitreous haemorrhage (Synchisis scintillans, TRD)
5. Expulsive suprachoroidal haemorrhage

Question 2

Causes of hyphaema

Answer 2

1. Trauma (blunt, penetrating)
2. Spontaneous
   
   • v/s abnormal
   • tumors
   • clotting disorders (sickle, anticoagulant, blood dyscrasia)

Question 3

Hyphaema classifications

Answer 3

1. Microscopic
2. G I (<1/3 AC volume)
3. G II (1/3-1/2)
4. G III(>1/2)
5. G IV (total)

Question 4

Indication for surgery in hyphaema

Answer 4

Ocular factor 
1. 90% AC volume * 9 days
2. IOP 
(>50mmHg* 5 days, >35mmHg*7 days)
(>25mmHg*6 days)
3. Corneal blood staining 

Patient factors

1. Risk of G damage (elderly, glaucoma, v/s d/s
2. Sickle cell A
3. Risk of staining & amblyopia (child)

Question 5

Angle recession

Answer 5

Rupture of anterior surface of CB extending between longitudinal & oblique/circular fibres

Question 6

Cyclodialysis

Answer 6

Disinsertion of longitudinal fibres of CB from sclera spur

Question 7

Iridodialysis

Answer 7

Rupture of iris diaphragm at the iris base from CB