Choose the Best IOL (Intraocular Lens) for Cataract Surgery

In surgery to remove a cataract, the opaque natural lens is taken out and in its place is an artificial lens known as an intraocular lens (IOL). The optimal IOL cannot apply to all it will depend on your eyes, the activities you do on a daily basis and how much you desire to rely on glasses after surgery. Cataract surgery has become now both Cataract Removal + Refractive Surgery (Glasses Removal Surgery). Your cataract will be removed and need for glasses will also be removed for all distances.

A tiny, clear Lens, which is implanted into your eye during cataract surgery, is known as an intraocular lens (IOL). It consists of biocompatible substances such as acrylic or silicone, thus it can be left in the eye without any maintenance.

Main Types of Intraocular Lenses

Monofocal IOLs

Monofocal IOLs enable the individual to see clearly at a single distance, which is mostly adjusted to far vision (driving, TV, walking outside). Glasses will usually be needed to read and do close work, such as mobile use, reading books or newspaper, sewing or very fine print.

They are:

• The most commonly used lenses worldwide.
• A good choice if you are comfortable using glasses for near work and want the sharpest distance vision with minimal visual side effects.

Toric IOLs (for Astigmatism)

Toric IOLs are used to correct cylindrical power (astigmatism) which occurs when the cornea or the lens is irregular, egg-like shape instead of being perfectly round. Unless astigmatism is repaired, your vision will not be clear even when using normal cataract surgery.​ Toric IOLs can be combined with all the types of lenses.

These Toric IOLs:

• Correct distance vision and built-in cylinder power to treat astigmatism.
• It can greatly reduce or even remove the need for distance glasses in many patients with moderate astigmatism.

Multifocal / Trifocal IOLs

Multifocal and trifocal IOLs will provide functional vision at distances other than the standard distance that is far (or near, in the case of trifocal), intermediate, and near (in the case of multifocal). They also divide the light into various focus points, which makes you see at various distances without relying on glasses much.They remove the dependency of glasses and once can do 95% of daily activities without glasses.

These lenses are helpful if you:

• Want freedom from both distance and reading glasses as much as possible.
• Do a lot of reading, smartphone use, and social/office work and want “spectacle independence”.

Some patients may notice halos or glare around lights at night, especially in the early period, which the brain often adapts to over time.

EDOF (Extended Depth of Focus) IOLs

The lens technology of EDOF forms a continuous focus rather than the discrete distance and near focus steps. They have generally excellent distance and intermediate vision (computer, dashboard, TV), and better near vision than simple monofocal lenses.

EDOF lenses:

• often have fewer halos and glare than some multifocal designs.
• are a good option if you want strong distance and computer vision and are okay with using light reading glasses for very fine or prolonged near work.

How to Decide Which IOL Is “Best” for You

There is no single “best” IOL for all patients; the right choice depends on:

• Your everyday habits (reading, night driving, working on the computer, outdoors, hobbies).
• The desire to have no glasses, either near or distant.
• Whether you are Astigmatism, have other eye conditions (such as macular problems, glaucoma) or have had eye surgery done. (Previous LASIK or Retina Surgery)
• Your character and sensitivity to potential glare/halos when using some high-quality lenses.

Common patterns your doctor may suggest:

• Monofocal IOL provided you are comfortable in using reading glasses and desire good distance vision with a minimum side effect on the vision.
• Toric monofocal IOL when you are very astigmatized and desire to have clear vision at a distance without the need to put on glasses.
• Multifocal/trifocal or EDOF IOL is provided if you desire to have more freedom to wear glasses when performing most of the activities and have healthy eyes.

IOLs and Cataract Surgery at Save Sight Centre

At Save Sight Centre, the Cataract Surgery is done under the most modern methods, such as phacoemulsification and Micro-Incision Cataract Surgery (MICS), which involves small incisions that heal quickly and give better vision. In the same operation, an appropriate IOL is inserted to substitute your hazy lens, and that decision has a large part to play in the quality of vision following surgery.

The team takes time to understand:

• Your age, work profile, and hobbies.
• Whether you drive often at night, use a computer for long hours, or read a lot.
• How comfortable are you with using glasses for some tasks versus wanting maximum independence from them?

Ophthalmologists at Save Sight Centre explain the differences between monofocal, toric, multifocal, and EDOF lenses, including probable visual outcomes and the prices of each. With years of experience in thousands of cataract procedures and NABH approval, their focus is on helping you select an IOL that best suits your lifestyle and eye health, rather than necessarily choosing the most fashionable option.