Major dissatisfaction occurs in a patient whose vision shows visual quality defects called optical aberrations. It can manifest itself as an unfolding of the profiles of the objects or difficulties in intermediate or close distances. In these cases, the solution is not very complex, although it does require an expert surgeon. It involves replacing multifocal lenses with monofocal lenses. You get a vision of quality from afar but you have to wear glasses for intermediate and near vision. Fortunately, these cases are very rare.
- Vision at all distances and quality. With the last toric circle lenses the patient manifests the following day a great visual satisfaction in a great majority of cases.
- But we must not forget that the result is not perfect in 100% of patients (as in any medical procedure).
- Mild dissatisfaction may be due to the vision of corona-like reflections around night light bulbs. Some patients may also need a 1 dioptre lens to support their near vision with low light.
How do doctor operate the Trifocal Lenses?
As well as any intraocular lens. The crystalline content is extracted by means of the phacoemulsification technique and the folded lens is implanted inside the capsule that have preserved. The lens unfolds and focuses. One of the important conditions is that the lens is well cantered so that the multifocal effects are for all time concentric to the visual axis. Trifocal lenses by their design, self-focus very satisfactorily.