Peripheral iridectomy
- A part of the iris near its root is removed.
- The pupil remains round.
Iridectomy
Iridotomy
Sector iridectomyY
- A part of the iris from the pupil to ciliary border is removed.
Visual iridectomyY
- A small part of the iris near the pupil but not reaching to ciliary border is removed.
- Its site is different (better down)
Japanese iridectomyY
Drawn up pupil
- Pupil is not central ¬ rounded .
- Iris tissue is present all round the pupil.
Iridodialysis
- D-shaped pupil
- Loss of the peripheral area of the iris.
Cause:
- Trauma
- Iatrogenic
Complication:
- Diplopia
Iris coloboma Y
- Defect is present in the iris
- Commonly bilateral and lower
- Due to failure of fetal cleft closure.
Posterior synechiaeY
Adhesion ( ) the iris and ant lens capsule
Posterior synechiaeY
Anisocoria (unequal pupil)
Unilateral horner most common
Rubeosis iridis
Abnormal blood vessels in the iris treated by PRP laser
Hyphema (Blood in the anterior chamber)Z
Causes: resulting to blood in anterior chamber
- Trauma
- Rupture of abnormal iris vessels
(NEVER select HYPERTENSION)
Complications:
- Secondary glaucoma with elevated IOP
- Recurrent bleeding
- Corneal blood staining
- least common is corneal fistula
Treatment:
-
Hospital admission
-
Semi-sitting position & Rest
-
Promote blood resorption
-
Antiglaucomatous eye drops treatment for elevated IOP
-
Follow up with the patient with level of Hyphema and IOP
-
Surgery indicated only in (if total/subtotal Hyphema, resistance treatment, persistent IOP) - aspiration of blood from anterior chamber and glaucoma surgery
-
Avoid aspirin or any drugs that increase bleeding
Abnormal Iris Vessels (rubeosis iridis)
Causes:
- Ischemic central retinal vein occlusion (ICRVO)
- PDR
Complications:
- Rupture of blood vessels leading to hyphema
- Neovascular glaucoma
Treatment:
- PRP for PDR + valve implantation
HypopyonY
Pus in Ac
Iris prolapse
Management:
Return it back and do repair surgery