eMedicine Specialties > Ophthalmology > Pupil
Pupillary Block, Aphakic: Differential Diagnoses & Workup
Updated: Jul 23, 2008
- Overview
- Differential Diagnoses & Workup
- Treatment & Medication
- Follow-up
Differential Diagnoses
Choroidal Detachment
Glaucoma, Malignant
Other Problems to Be Considered
- Malignant or ciliary block glaucoma
- Malignant or ciliary block glaucoma results from any cause of anterior chamber shallowing that may lead to forward displacement of the iris diaphragm and rotation of the ciliary body and subsequent misdirection of the aqueous humor toward the vitreous.
- It is a rare complication of cataract extraction with or without intraocular lens implantation, trabeculectomy, and glaucoma triple procedure (trabeculectomy combined with extracapsular cataract extraction and posterior chamber intraocular lens implantation).
- Hypotony due to loose suturing of the corneoscleral wound or hyperfiltration of a trabeculectomy may lead to a vicious cycle of anterior chamber shallowing, forward displacement of the iris-capsule diaphragm, and aqueous misdirection and further anterior chamber shallowing.
- When cycloplegics are stopped early in the postoperative period, malignant or ciliary block glaucoma may occur.
- The absence of a functioning iridectomy predisposing to relative pupillary block may be one of the initial phases in the spectrum of aqueous misdirection.
- Suprachoroidal hemorrhage
- Suprachoroidal hemorrhage is characterized by a sudden onset of excruciating pain, increased intraocular pressure, and a shallow or flat anterior chamber.
- Dark nonserous choroidal detachment can be seen on funduscopic examination or on B-scan ultrasound.
- Choroidal separation
- A very shallow or flat anterior chamber in aphakia also is seen in choroidal separation (choroidal detachment).
- The distinguishing feature is a subnormal IOP in the case of choroidal separation, while this is normal or elevated in pupillary block.
Workup
Other Tests
- Gonioscopy
- Tonometry
- Evaluation of the optic nerve head
- Visual field testing
Procedures
- See Surgical Care.
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Differential Diagnoses & Workup: Pupillary Block, Aphakic |
| Treatment & Medication: Pupillary Block, Aphakic |
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References
Kumar A, Kedar S, Garodia VK. Angle closure glaucoma following pupillary block in an aphakic perfluoropropane gas-filled eye. Indian J Ophthalmol. Sep 2002;50(3):220-1. [Medline].
Shaffer RN. The role of vitreous detachment in aphakic and malignant glaucoma. Trans Am Acad Ophthalmol Otolaryngol. 1954;58:217-231.
Posner A. Postcataract glaucoma associated with shallow anterior chamber. Int Ophthalmol Clin. 1964;4:1029-1043.
Beekhuis WH, Ando F, Zivojnovic R, et al. Basal iridectomy at 6 o'clock in the aphakic eye treated with silicone oil: prevention of keratopathy and secondary glaucoma. Br J Ophthalmol. Mar 1987;71(3):197-200. [Medline].
Chandler PA. Glaucoma from pupillary block in aphakia. Arch Ophthalmol. 1962;7:44-47.
Chandler PA, Simmons RJ. Gonioscopy during surgery for aphakic eyes with pupillary block. Am J Ophthalmol. Oct 1972;74(4):571-80. [Medline].
Cotlier E. Aphakic flat anterior chamber. IV. Treatment of pupillary block by iridectomy. Arch Ophthalmol. Jul 1972;88(1):22-6. [Medline].
Jaffe NS, Light DS. The danger of air pupillary block glaucoma in cataract surgery with osmotic hypotonia. Arch Ophthalmol. Nov 1966;76(5):633-4. [Medline].
Koc F, Kargi S, Biglan AW, et al. The aetiology in paediatric aphakic glaucoma. Eye. Dec 2006;20(12):1360-5. [Medline].
Mandal AK, Bagga H, Nutheti R. Trabeculectomy with or without mitomycin-C for paediatric glaucoma in aphakia and pseudophakia following congenital cataract surgery. Eye. Jan 2003;17(1):53-62. [Medline].
Tomey KF, Traverso CE. Neodymium-YAG laser posterior capsulotomy for the treatment of aphakic and pseudophakic pupillary block. Am J Ophthalmol. Nov 15 1987;104(5):502-7. [Medline].
Tomey KF, Traverso CE. The glaucomas in aphakia and pseudophakia. Surv Ophthalmol. Sep-Oct 1991;36(2):79-112. [Medline].
Zborowski-Gutman L, Treister G, Naveh N, et al. Acute glaucoma following vitrectomy and silicone oil injection. Br J Ophthalmol. Dec 1987;71(12):903-6. [Medline].
Further Reading
Keywords
pupillary block, aphakic pupillary block, aphakia, pupillary block glaucoma, angle closure, cataract surgery, cataracts, cataract extraction, crystalline lens, lens implantation, lens subluxation, anterior pupillary block, posterior pupillary block, intraocular trauma
Differential Diagnoses & Workup: Pupillary Block, Aphakic