Pinhole lenses are extremely versatile intraocular lenses that are mainly reserved for patients with a non-uniform or irregular corneas
The lenses have an inbuilt pinhole and works on the same “pinhole” effect as a camera to concentrate light onto the retina and therefor reducing light scatter that is induced by irregular corneas.
Despite the pinhole in the lens it does not affect the patient’s visual field and is very well tolerated.
These lenses are ideal in the following patients who have cataract and:
Pinhole lenses can also be implanted in eye without irregular corneas to enhance the depth of field. Pinhole lenses are regarded as true Extended Depth of Focus (EDOF) lenses.
They can be implanted in a patient’s non dominant eye to aid with spectacle independence. I do not routinely use pinhole lenses for this purpose as better intraocular lenses are available to give superior reading outcomes.
An example of a pinhole intraocular lens
Pinhole intraocular lenses are used to concentrate light onto the retina reducing light scatter in irregular corneas
A patient of mine with a Pinhole intraocular lens due to an irregular cornea
A close-up look of one of my patients with a pinhole lens
A patient of mine with Radial Keratotomies performed in the 1980’s in whom I implanted pinhole lenses. This particular patient sees 20/20 and can read small print without glasses.**
** individual results may vary
Some of my patients with pinhole lenses
Whether you are ready to take the plunge into a world of crystal clear vision, or just have a few questions for me, feel free to drop me a line.
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