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Pupillary block glaucoma in child with persistent hyperplastic primary vitreus--case report
Krystyna Kanigowska1, Mirosława Grałek, Wiesława Grajkowska
1Department of Ophthalmology of Children's Memorial Health Institute, Warsaw.
Insights
Persistent hyperplastic primary vitreous (PHPV) can lead to pupillary block glaucoma due to lens dislocation. Early surgical intervention is crucial for managing this condition and preserving vision in affected infants.
Area of Science:
- Ophthalmology
- Pediatric Ophthalmology
- Developmental Biology
Background:
- Persistent hyperplastic primary vitreous (PHPV) is a congenital developmental disorder of the eye.
- It can lead to various complications, including glaucoma and cataracts.
Observation:
- A case of a 3-month-old infant with PHPV presenting with a grey pupillary reflex and microphthalmia.
- The patient developed increased intraocular pressure and globe enlargement due to complete lens dislocation into the anterior chamber, causing pupillary block.
Findings:
- A complex, one-step surgical procedure involving trabeculectomy, lensectomy, and removal of a retrolenticular fibrous membrane was performed.
- The surgery successfully normalized intraocular pressure and facilitated visual rehabilitation. Transient choroidal detachment was noted postoperatively.
Implications:
- This case highlights the critical role of early surgical intervention in managing PHPV complications like lens luxation and pupillary block.
- Prompt treatment is essential to prevent irreversible pathological changes and optimize visual outcomes in affected children.
Purpose:
The purpose of this paper is to present the case of a patient with PHPV, in whom the complication in a form of pupillary block glaucoma was observed as a result of idiopathic and complete lens dislocation into the anterior chamber.
Material And Methods:
Examination was performed on 3 months old boy with grey pupilla reflex, noted from the birth, in the right eye. Microphthalmia, subcapsular cataract and anterior-posterior form of PHPV was found in that eye. The patient was qualified to surgical treatment. Before the appointed time of operation the increased intraocular pressure and significant globe enlargement were noted. The reason of that was pupillary block caused by lens dislocation into the anterior chamber. One-step surgical procedure: trabeculectomy, lensectomy and cutting out the retrolenticular fibrous membrane, was performed in urgent course.
Results:
Performed complicated and difficult surgical treatment resulted in normalizing IOP and created good conditions for vision rehabilitation for the child. Postoperatively the detachment of the choroid was noted as a transient complication.
Conclusions:
In this case luxated lens and pupillary block was caused by constriction of retrolenticular fibrous membrane. Early surgical intervention is necessary to prevent progressive pathologic changes in eyes with this developmental disorder and to obtain the best possible visual results.
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