Can untreated cataracts cause glaucoma?

In one of our latest medical articles, we discuss cataracts and glaucoma and the differences between the two extremely common eye conditions with highly experienced consultant ophthalmologist, Mr Sameer Trikha.

What are cataracts? What is glaucoma?

Cataracts affect the natural lens of the eye, whereby it starts to get cloudy. Symptoms include difficulty with small print, glare, and halos around lights. Cataracts can be defined as a condition whereby the natural lens of the eye becomes cloudy and misty.

In contrast, glaucoma is a condition whereby the optic nerve starts to get damaged. This typically occurs due to high eye pressure.

How can I tell the difference between the two?

Cataracts affect the vision and the quality of one’s eyesight. Usually, there is no other pathology that is causing the vision to be reduced apart from a developed cloudiness. In contrast, glaucoma can be identified through an examination, and when the eye is examined, we can find optic nerve damage.

We can also identify damage in one’s eye through an eye field test. Furthermore, by doing a high-resolution scan, we can identify damage, which typically points towards glaucoma. Typically, in patients with cataracts alone and no glaucoma, the optic nerve will be healthy. There will be no sign of focal damage in the eye, which is the case for patients with glaucoma.

Can you have both conditions at the same time?

Yes, it is possible to have both cataracts and glaucoma at the same time.

Is cataract surgery safe if you have glaucoma?

Yes, it is safe when performed on patients with glaucoma, although we have to take additional precautions in order to avoid raised eye pressure after the procedure.

Can cataract surgery eliminate glaucoma?

On its own, cataract surgery cannot eliminate glaucoma because glaucoma itself is irreversible. Having said that, cataract surgery can help to reduce the intraocular pressure, which can benefit patients with glaucoma.

Cataract surgery, when combined with other glaucoma procedures, can certainly help pressure control in patients with glaucoma.

Can untreated cataracts cause glaucoma?

If cataracts are left untreated for a considerable amount of time, the development of a second variant of glaucoma can occur. Occasionally, when the cataract becomes very large, it can start leaking from inside the eye and lens material can then actually cause raised eye pressure in the eye.

To book a consultation with Mr Sameer Trikha, visit his Top Doctors profile today.