Secondary Glaucoma Dated :

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Presentation transcript:

Secondary Glaucoma Dated : 05-05-2017 - Prof Sanjeev Kumar Mittal

Definition Types Causes Treatment

Secondary Glaucoma Conditions with raised intraocular pressure due to pre existing ocular causes. May manifest as- Secondary open angle Glaucoma Secondary angle closure Glaucoma Mixed pattern

1] lens induced glaucoma/Phakogenic Phacomorphic glaucoma Phacolytic glaucoma Phacoanaphylactic glaucoma Glaucoma associated with dislocated lens [phakotopic] v. Glaucoma capsulare/ Pseudoexfoliation syndrome

Inflammatory glaucoma Intra ocular inflammation (inflammatory glaucoma): ▪ Associated with uveitis Inflammatory glaucoma 1] Iridocyclitis (both in acute phase & chronic phases) 2] Glaucomato-cyclitic crisis /Hypertensive uveitis (Posner and Schlossmann’s syndrome) 3] Following perforated corneal ulcer 4] As a complication of Keratitis & scleritis

3] Steroid-induced glaucoma Iatrogenic cause It is associated with topical, periocular, systemic or intraocular steroid therapy. IOP rise after steroid therapy occurs more often with topical administration than with systemic administration. Periocular injection of a long action steroid is the most dangerous route. Intravitreal steroid use (Triamcinolone injection to treat intraocular neovascular or inflammatory disease) can also cause a rise in IOP.

vi. The response of IOP to steroids is genetically determined vii. Rise in IOP occurs 6 weeks to 2 months viii. Response varies in people ix. Reversible X . But we need to treat till it comes down

Pathogenesis: deposition of mucopolysaccharides in trabecular meshwork Reduced endothelial phagocytic activity Inhibit synthesis of prostaglandins E and F which otherwise increase aqueous out flow.

Treatment: Stop steroid Treat with Drug for POAG Surgery if medical treatment is unable to prevent damage to optic nerve

4] Pigmentary Glaucoma Young myopic males Deposition of iris pigments in trabecular meshwork damage Krukenberg’s spindle (over corneal endothelium) Gonioscopy (Sampaolesi’s line)

Glaucoma associated with intra ocular tumours Causes: Episcleral venous hypertension (obstruction beyond trabecular meshwork) Obstruction of angle by seeding of tumour cells Forward displacement of Lens-iris diaphragm eg- Thyroid exophthalmos, Carotico-cavernous fistula Superior vena cava syndrome metastatic carcinoma of orbit Retinoblastoma Iris melanoma

Post-traumatic Glaucoma [A] Blunt injury Rise in IOP is biphasic - early which lasts for few hours - After few months/years (angle recession) Gonioscopy is confimatory diagnosis- deeper angle recess with widening of ciliary band [B] Penetrating injury [C] Chemical injury

Neovascular glaucoma may be associated with all of the following except: Diabetes Hypertension Central retinal vein occlusion d. Intraocular tumours

Treatment of malignant glaucoma includes all except: Topical atropine Topical pilocarpine IV mannitol Vitreous aspiration

Secondary glaucoma following corneal perforation is due to: Central anterior synechiae formation Peripheral anterior synechiae Intraocular haemorrhage d. Angle recession

Glaukomflecken is a feature of: Acute narrow-angle glaucoma Pseudoexfoliative glaucoma Juvenile glaucoma Phacolytic glaucoma

All of the following are true about pigmentary glaucoma except: It occurs more often in young myopic men Iris transillumination defects are noted It is associated with Krukenberg’s spindle The intensity of pigment deposit in the angle is related to iris colour

After blunt trauma to eye Raja develops circumcorneal congestion After blunt trauma to eye Raja develops circumcorneal congestion. Now, which test should be done? (a) Ultrasonography (b) Perimetry (c) Direct ophthalmoscopy (d) intraocular pressure measurement.

Thank you Photographs taken from Clinical ophthalmology by Kanski