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[Familial nanophthalmos]
1Unità Operativa di Oculistica - Presidio Ospedaliero, Aosta, Italia.
Journal Francais D'Ophtalmologie
|January 1, 1988
Summary
Nanophthalmos is a rare congenital eye condition causing a small eye with a thick sclera. This condition predisposes individuals to angle-closure glaucoma and uveal effusion.
Area of Science:
- Ophthalmology
- Genetics
- Pathology
Background:
- Microphthalmos, a rare congenital condition, presents with a small eye.
- Pure microphthalmos, also known as nanophthalmos, is characterized by reduced eye size, a high lens-to-eye volume ratio, and thickened sclera without other anomalies.
Observation:
- Nanophthalmos can be sporadic or hereditary, with potential for recessive or dominant inheritance patterns.
- Eyes with nanophthalmos are predisposed to angle-closure glaucoma and uveal effusion.
- Uveal effusion in nanophthalmos may result from thickened sclera obstructing vortex veins or occur spontaneously.
Findings:
- Familial cases of nanophthalmos associated with angle-closure glaucoma (without uveal effusion or microcornea) suggest autosomal recessive inheritance.
- Angle-closure glaucoma in nanophthalmos is linked to age-related lens growth and potential choroidal detachment.
- Surgical globe decompression may worsen uveal effusion.
Implications:
- Understanding the genetic basis of nanophthalmos is crucial for genetic counseling and family planning.
- Early detection and management of glaucoma in nanophthalmos patients are essential.
- Further research into the mechanisms of uveal effusion in nanophthalmos may reveal new therapeutic targets.