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In a patient with the pseudoexfoliation syndrome, it is characterized by deposition of pseudoexfoli

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Title: In a patient with the pseudoexfoliation syndrome, it is characterized by deposition of pseudoexfoli


1
Introduction
  •   In a patient with the pseudoexfoliation
    syndrome, it is characterized by deposition of
    pseudoexfoliative amyloid-like material on the
    anterior lens capsule, ciliary body, zonules,
    pupillary margin of the iris, corneal
    endothelium, anterior vitreous, and trabecular
    meshwork. Pseudoexfoliation material is
    associated with abnormalities of the basement
    membrane in epithelial cells. Initially,
    intraocular pressure is unaffected however,
    elevated IOP develops in up to 80 percent of
    patients.

2
Case
  •   A 60-year-old man, had been treated for
    pseudoexfoliation syndrome and cataract, visited
    the hospital for abruptly developed visual
    disturbance and ocular pain in both eyes. Visual
    acuity was finger count 30cm in the right eye and
    finger count 10cm in the left eye. Intraocular
    pressure was 47mmHg in the right eye and 52mmHg
    in the left eye. Slit lamp examination showed
    cornea with microcyst and shallow anterior
    chamber( V.H. grade I) Laser iridotomy was
    performed in the right eye and cataract operation
    with surgical iridectomy was done in the left eye
    due to significant posterior polar lens
    opacity. 6 months after treatment, Visual acuity
    was 0.8(1.0) in the right eye and 1.0 in the left
    eye. Intraocular pressure was 14 mmHg in the
    right eye and 12 mmHg in the left eye.

3
Case
1-A
1-A
1-B
Fig.1. A pseudoexfoliation material is on the
anterior lens capsule in the right eye (A) and
the left eye (B) on the initial examination. This
figure shows an edematous cornea with Descemets
membrane folding on both eyes.
4
Case
2-A
2-B
Fig.2. Laser iridotomy was perfomed at 11 oclock
in the right eye (A) and cataract operation with
surgical iridectomy was done in the left eye.(B)
5
Conclusion
  • In 1917, Lindberg1) first described
    pseudoexfoliation syndrome. This entity is
    characterized by flakes of granular material at
    the pupillary margin of the iris and throughout
    the inner surface of the anterior chamber.
    Dvorak-Theobald2) recommended the term
    pseudoexfoliation of the lens capsule to
    distinguish the condition from capsular
    delamination or true exfoliation. It is also
    associated with secondary open-angle glaucoma,
    known as pseudoexfoliation glaucoma, which is the
    most common identifiable form of secondary
    open-angle glaucoma worldwide. But glaucoma is
    not always present in eyes with this disorder but
    when it does occur in association with the
    pseudoexfoliation syndrome, the condition has
    been called glaucoma capsulare, capsular
    glaucoma, or pseudoexfoliation glaucoma.

6
Conclusion
  • In one study of patients with the
    pseudoexfoliation syndorme but without glaucoma
    on the initial examination, one third developed
    glaucoma during 1.5-year follow up3). Some
    patient with bilateral pseudoexfoliation syndrome
    have glaucoma in both eyes, but others have a
    pressure rise in only one of the eyes with
    pseudoexfoliation. Most eyes with
    pseudoexfoliation syndrome have an open angle
    mechanism, although acute angle-closure glaucoma
    also occurs in a small number of cases4). In one
    series of 139 pseudoexfoliation syndrome patients
    presenting with acute glaucoma, 86 had open
    angles, 18 had angle closure, 21 had neovascular
    glaucoma, and 14 had absolute glaucoma. Mechanism
    of rise in IOP in pseudoexfoliation syndrome
    associated open angles may include local
    production of pseudoexfoliation mateiral,
    endothelial cell damage of the trabecular
    meshwork and passive deposition of
    pseudoexfoliation material and pigment
    originating from elsewhere in the anterior
    segment.

7
Conclusion
  • A less common mechanism of glaucoma in
    patient with pseudoexfoliation syndrome is acute
    or chronic angle-closure glaucoma5). A number of
    mechanisms may create a tendency toward pupillary
    block and angle closure including zonular
    weakness, causing anterior movement of the lens
    lens thickening from cataract formation
    increased adhesiveness of the iris to the lens
    due to pseudoexfoliation material, sphincter
    muscle degeneration, and uveitis and iris
    rigidity from hypoxia. The treatment of
    pseudoexfoliation glaucoma is the same as that of
    primary open-angle glaucoma however, topical
    medications tend to be less effective. When
    medical therapy is no longer adequate, Argon
    laser trabeculoplasty is frequently used with
    excellent initial success. Intraocular pressure
    appears to decrease in pseudoexfoliation eyes
    after phacoemulsification cataract extraction6

8
Reference
  • 1. Lindberg JG. Clinical investigations on
    depigmentation of the pupillary border and
    translucency of the iris in cases of senile
    cataract and in normal eyes in elderly persons.
    Academic Dissertation, Helsinki, 1917. English
    translation by Tarkkanen A, Forsius H. Acta
    Ophthalmol 198966(Suppl 190), Helsinki,
    University Press.
  • 2. Dvorak-Theobald G. Pseudo-pseudoexfoliation of
    the lens capsule relation to true
    pseudoexfoliation of the lens capsule as reported
    in the literature and role in the production of
    glaucoma capsulocuticulare. Am J Ophthalmol
    1954371
  • 3. Slagsvold JE. The follow-up in patients with
    pseudoexfoliation of the lens capsule with and
    without glaucoma. 2. The development of glaucoma
    in persons with pseudoexfoliation. Acta
    Ophthalmol 198664241
  • 4. Gillies WE, Brooks AMV. The presentation of
    acute glaucoma in pseudoexfoliation of the lens
    capsule. Aust N Z J Ophthalmol 198816101
  • 5. Wishart PK, Spaeth GL, Poryzees EM. Anterior
    chamber angle in the pseudoexfoliation syndrome.
    Br J Ophthalmol 198569103
  • 6. Merkur A, Damji KF, Mintsioulis G, et al.
    Intraocular pressure decrease after
    phacoemulsification in patients with
    pseudoexfoliation syndrome. J Cataract Refract
    Surg 200127528
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