Choosing the right lens is essential to achieve clear and satisfactory vision in everyday life.
Cataract surgery is one of the most frequently performed operations with the highest success rates in the field of ophthalmology. It consists of removing the opaque crystalline lens and replacing it with an intraocular lens. There are various types of intraocular lenses, with specific characteristics, which are adapted to the individual vision needs of each person.
Types of lenses
- Monofocal lenses
They focus at one distance only (far or near) and the other distance must be compensated with glasses. They are ideal for those who do not mind wearing glasses.
- Single vision plus lenses
These lenses, while also having a single main focal point, are designed with features that improve intermediate and near vision compared to traditional single vision lenses. They do not completely eliminate the need for glasses, but they do reduce the need for glasses.
- Extended range lenses
Offer continuous intermediate to far vision and adequate functional near vision, needing correction only for the “fine print”. Ideal for those seeking independence from spectacles for everyday activities.
- Bifocal lenses
They have two focal points: near and far. They allow clear vision at these distances, but do not provide clear intermediate vision.
- Trifocal lenses
Offer three focal points for clear vision at near, intermediate and far distances. They are recommended for active people seeking maximum independence from spectacles.
The choice of intraocular lens in cataract surgery should be made in consideration of the patient’s visual needs and expectations. Each type of lens offers different advantages and limitations. Monofocal and monofocal plus lenses are options with good visual quality for a specific distance, while extended range, bifocal and trifocal lenses provide greater versatility and potential independence from spectacles.
It is important to understand that, as with a mobile phone, the higher the performance, the more difficult it is to learn or adapt to the intraocular lens. It is therefore essential to consult an ophthalmologist to determine the most suitable and personalised option.
