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What is IOL opacification?

What is IOL opacification?

Intraocular lens (IOL ) Opacification is an uncommon but serious complication of cataract surgery. It can cause significant deterioration of visual performance and may necessitate IOL explantation and exchange 1.

What is PC IOL?

Background: Extracapsular cataract extraction (ECCE) with a posterior chamber intraocular lens (PC IOL) is the preferred method of cataract surgery in developed countries. However, intracapsular cataract extraction (ICCE) with an anterior chamber lens (AC IOL) may be appropriate in rural Africa.

What is the treatment for posterior capsular opacification?

Posterior capsule opacification is most often treated using a neodymium:yttrium–aluminium–garnet (Nd:YAG) laser. Quick pulses of the laser make precise ablations in the posterior capsule and create a small circular opening in the visual axis.

Is posterior capsule opacification an emergency?

What happens if PCO is not treated? PCO is not a serious disease nor is it an emergency. If it is not treated, it will increase with time and cause deterioration of vision.

What causes lens opacification?

Posterior capsular opacification (PCO) occurs when a cloudy layer of scar tissue forms behind your lens implant. This may cause you to have blurry or hazy vision, or to see a lot of glare from lights. PCO is fairly common after cataract surgery, occurring in about 20% of patients.

Can IOL be replaced after YAG?

Often, you can still implant a multifocal lens in the bag if the IOL is being exchanged due to IOL calculation issues. A sulcus lens is preferred if the patient is post-YAG capsulotomy or has a weak posterior capsule. I prefer to exchange the lens as soon as possible, before significant capsular fibrosis has occurred.

What does posterior chamber mean?

Medical Definition of posterior chamber : a narrow space in the eye that is behind the peripheral part of the iris and in front of the suspensory ligament of the lens and the ciliary processes and is filled with aqueous humor — compare anterior chamber.

How common is posterior capsule opacification?

Can posterior capsule opacification be avoided?

Posterior capsule opacification (PCO) is a complication that can occur some time after cataract surgery. The vision problems caused by PCO can make it seem as though your cataract has returned, but it can be easily treated with a quick, painless, outpatient laser procedure to make vision clear again.

How can I prevent PCO after cataract surgery?

In recent decades, there have been advances in the selection of IOL materials and optimisation of IOL designs to help prevent PCO formation after cataract surgery. These include changes to the side structures holding the lens in the centre of the lens capsule bag, called IOL haptics, and IOL optic edge designs.

What are the symptoms of posterior capsule opacification?

Posterior Capsule Opacification symptoms are very similar to cataract symptoms. These include: blurring of vision, glare in daytime or when driving and difficulty seeing near objects that were clear after cataract surgery.

What are the classifications of pulmonary opacification?

Classification of pulmonary opacification. airspace opacification consolidation. atelectasis. ground-glass opacification. airspace nodules. branching, e.g. mucoid impaction. linear opacification reticular interstitial pattern, e.g. usual interstitial pneumonia. reticulonodular interstitial pattern, e.g. sarcoidosis.

What is the pathophysiology of intraocular lens (IOL) opacification?

Intraocular lens (IOL) opacification may cause severe visual impairment. The pathogenesis remains unclear. The aim of this study was to analyse opacification patterns in different IOLs.

How common is fine-granular opacification in IOLs?

A fine-granular opacification pattern was found in the majority of cases (n=67; 89.3%) and a crust-like pattern was present in 8 (10.7%) IOLs. The colour and structure of the opacification varied as shown in figure 1B, C.

What is the interval between initial IOL implantation and opacified IOL?

Interval between initial IOL implantation (during cataract surgery) and explantation of opacified IOL (months) arithmetic mean (95% CI) (min/max) 57.6 (50.1 to 65.1) (17/274)