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Visual field behavior after intra-ocular surgery in glaucoma patients with advanced defects
C T Langerhorst1, B de Clercq, T J van den Berg
1Department of Ophthalmology, University of Amsterdam, The Netherlands.
Documenta Ophthalmologica. Advances in Ophthalmology
|October 1, 1990
Summary
Advanced glaucoma surgery impacts vision differently. Cataract surgery improved visual acuity, while filtering procedures often worsened it, though visual fields showed slight expansion in both groups.
Area of Science:
- Ophthalmology
- Glaucoma Research
- Surgical Outcomes
Background:
- Advanced glaucoma presents challenges in preserving central vision.
- Intra-ocular surgeries are common treatments for glaucoma.
- Understanding surgical effects on visual acuity and fields is crucial.
Purpose of the Study:
- To evaluate the impact of intra-ocular surgery on visual acuity and visual field behavior in advanced glaucoma patients.
- To compare outcomes between cataract extraction and filtering procedures.
Main Methods:
- Prospective evaluation of 50 advanced glaucoma patients with central visual field islands.
- Assessment of visual acuity and visual field parameters before and after surgery.
- Categorization of patients into cataract extraction (13) or filtering procedures (37).
Main Results:
- Visual acuity generally improved after cataract extraction but deteriorated after filtering surgery.
- Visual field island surface area slightly increased in both groups post-surgery.
- Foveal visual field values typically decreased post-operation, with no clear correlation to acuity or island size.
Conclusions:
- Cataract extraction and filtering procedures yield different visual acuity outcomes in advanced glaucoma.
- While visual field islands may expand, central visual function (foveal value) can be compromised post-surgery.
- Further research is needed to understand the relationship between surgical interventions and visual field changes in glaucoma.