Phacomorphic Glaucoma Clinical Presentation
- Author: Harpreet Gill, MD; Chief Editor: Hampton Roy Sr, MD more...
History
- Patients with phacomorphic glaucoma complain of acute pain, blurred vision, rainbow-colored halos around lights, nausea, and vomiting.
- Patients generally have decreased vision before the acute episode because of a history of a cataract.
Physical
Signs of phacomorphic glaucoma include the following:
- High intraocular pressure (IOP) - Greater than 35 mm Hg
- Middilated, sluggish, irregular pupil
- Corneal edema
- Injection of conjunctival and episcleral vessels
- Shallow central anterior chamber (AC)
- Lens enlargement and forward displacement
- Unequal cataract formation between the 2 eyes
Causes
- Certain factors predispose a patient to phacomorphic glaucoma, as follows:
- Intumescent cataract
- Traumatic cataract
- Rapidly developing senile cataract
- Phacomorphic glaucoma is more common in smaller hyperopic eyes with a larger lens and a shallower AC.
- An angle-closure attack can be precipitated by pupillary dilation in dim light. The dilation to midposition relaxes the peripheral iris so that it may bow forward, coming into contact with the trabecular meshwork, setting the stage for pupillary block. Angle closure also is facilitated by the pressure originating posterior to the lens and the enlargement of the lens itself.
- Zonular weakness secondary to exfoliation, trauma, or age can play a part in causing phacomorphic glaucoma.
Tham CC, Lai JS, Poon AS, Chan JC, Lam SW, Chua JK, et al. Immediate argon laser peripheral iridoplasty (ALPI) as initial treatment for acute phacomorphic angle-closure (phacomorphic glaucoma) before cataract extraction: a preliminary study. Eye (Lond). Jul 2005;19(7):778-83. [Medline].
Leung CK, Chan WM, Ko CY, Chui SI, Woo J, Tsang MK, et al. Visualization of anterior chamber angle dynamics using optical coherence tomography. Ophthalmology. Jun 2005;112(6):980-4. [Medline].
Dada T, Kumar S, Gadia R, Aggarwal A, Gupta V, Sihota R. Sutureless single-port transconjunctival pars plana limited vitrectomy combined with phacoemulsification for management of phacomorphic glaucoma. J Cataract Refract Surg. Jun 2007;33(6):951-4. [Medline].
Albert DM, Jakobiec FA. Principles and Practice of Ophthalmology. Vol 3. 1994.
Duane TD, Jaeger EA. Clinical Ophthalmology. Vol 3. 1986.
McKibbin M, Gupta A, Atkins AD. Cataract extraction and intraocular lens implantation in eyes with phacomorphic or phacolytic glaucoma. J Cataract Refract Surg. Jun 1996;22(5):633-6. [Medline].
Rao SK, Padmanabhan P. Capsulorhexis in white cataracts. J Cataract Refract Surg. Apr 2000;26(4):477-8. [Medline].
Ritch R, Shields MB, Krupin T. The Glaucomas. Vol 2. 1996.
Shields MB. Textbook of Glaucoma. 1998.
Vander JF, Gault JA. Ophthalmology Secrets. 1998.

