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Visual field loss with colored hydrogel lenses.
American Journal of Optometry and Physiological Optics
|January 1, 1987
Summary
Colored hydrogel contact lenses, particularly those with opaque portions, can cause significant peripheral vision loss. Patients should be informed about this potential reduction in visual field before fitting colored lenses.
Area of Science:
- Ophthalmology
- Optometry
- Vision Science
Background:
- Myopia is a common refractive error.
- Contact lenses are widely used for vision correction.
- Cosmetic contact lenses with colored irises are popular.
Purpose of the Study:
- To compare the visual fields of patients wearing clear hydrogel lenses versus those with opaque colored portions.
- To quantify peripheral vision loss associated with colored contact lenses.
Main Methods:
- 10 healthy myopic patients participated.
- Visual fields were assessed using clear hydrogel lenses.
- Visual fields were reassessed using hydrogel lenses with opaque colored portions covering the iris.
Main Results:
- All patients experienced significant peripheral visual field loss (greater than 10 degrees) when wearing the colored lenses.
- The opaque, mid-peripheral colored portion of the lenses was responsible for the field reduction.
Conclusions:
- Opaque colored hydrogel contact lenses can cause a notable reduction in peripheral vision.
- Ophthalmologists and optometrists should counsel patients on potential visual field deficits before fitting these lenses.