Cataract & Lens Surgery in Beirut

Modern cataract surgery combines removal of the cloudy lens with planning for how the eye will focus afterward.

The cloudy natural lens is removed through a small incision, usually using phacoemulsification, and replaced with a clear intraocular lens (IOL). The quality of the result depends on the surgery itself, but also on accurate measurements, corneal and retinal health, optic-nerve function, astigmatism, ocular-surface quality and the choice of lens strategy.

Dr Seif’s cataract practice combines modern small-incision surgery with individualized refractive planning, including complex cataract and lens surgery and cataract surgery in patients with glaucoma.

Choosing the right intraocular lens

There is no single best lens for every patient, and glasses may still be needed after surgery. The appropriate IOL depends on the anatomy and health of the eye, the presence of astigmatism or glaucoma, and the patient’s visual priorities.

Monofocal IOLs

Provide one principal focus, commonly planned for clear distance vision. Reading glasses are usually required for near work.

Toric IOLs

Designed to reduce corneal astigmatism and can be incorporated into different lens strategies when appropriate.

Enhanced monofocal IOLs

Designed to extend useful vision, particularly toward intermediate distances, while maintaining a visual profile close to a monofocal lens.

Extended-depth-of-focus (EDOF) IOLs

Designed to provide a broader range of clear vision, particularly from distance through intermediate tasks. Near glasses may still be required.

Multifocal / trifocal IOLs

Designed to provide useful vision at several distances and can reduce dependence on glasses in appropriately selected eyes. Careful selection is important because optical phenomena such as halos or glare can occur and because some ocular diseases reduce the benefit of this strategy.

Planning the visual target

Some patients prefer both eyes optimized for distance. Others may benefit from a planned difference between the eyes — often called monovision or mini-monovision — to extend functional intermediate or near vision.

Accurate refractive planning depends on reliable measurements and a healthy ocular surface, which may need to be optimized before the final lens calculations are made.

Cataract surgery in glaucoma

Glaucoma changes cataract planning.

Optic-nerve damage, visual field loss, angle anatomy, medication burden and target pressure can influence both the IOL strategy and whether a glaucoma procedure should be performed at the same time.

In suitable eyes, cataract surgery can be combined with minimally invasive glaucoma surgery (MIGS) or a canal-based procedure. In more advanced disease, another glaucoma operation or a staged approach may be more appropriate.

When cataract surgery is not routine

Weak lens-supporting fibers (zonules), pseudoexfoliation, lens instability, dense cataract, small pupils, previous eye surgery or coexisting glaucoma can substantially change the cataract surgical plan.

When normal capsular support is inadequate or a previous IOL is unstable, surgery may require additional capsular support, secondary lens fixation or coordination with glaucoma treatment.

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