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Ocular Hypertension

Ocular hypertension means the pressure inside the eye, measured as intraocular pressure (IOP), is consistently above the normal range of roughly 10 to 21 mmHg. The condition itself causes no pain and no visible changes to sight, yet elevated IOP is the most significant modifiable risk factor for glaucoma, a leading cause of irreversible blindness worldwide.

Lumigan

Bimatoprost

3ml

Bimatoprost eye drops in a 3ml bottle, used in the management of glaucoma and ocular hypertension. A structural prostaglandin F2-alpha analogue.

From$55.39/ bottleView

Lumigan + Applicators

Bimatoprost

3ml

Lumigan with applicators pairs the 3ml bimatoprost eye drops with applicators for glaucoma and ocular hypertension. Pressure falls as outflow rises.

From$64.60/ bottleView

Careprost + Applicators

Bimatoprost

3ml

Careprost with applicators supplies bimatoprost 3ml eye drops and the applicators, for glaucoma and ocular hypertension. It drains fluid from the eye.

From$35.27/ bottleView

Careprost

Bimatoprost

3ml

Careprost is bimatoprost as a 3ml eye drop solution for glaucoma and ocular hypertension, lowering pressure by promoting aqueous humour outflow.

From$30.31/ bottleView

Bimat + Applicators

Bimatoprost

3ml

Bimat with applicators is bimatoprost eye drops in a 3ml bottle for glaucoma and ocular hypertension. A prostaglandin analogue that raises fluid outflow.

From$32.30/ bottleView

Xalatan

Latanoprost

2.5ml

Latanoprost eye drops in a 2.5ml bottle, used in the management of glaucoma and ocular hypertension. A prostaglandin analogue that aids outflow.

From$66.67/ bottleView

Timoptic

Timolol

0.5%

Timolol 0.5% eye drops, used in the management of open-angle glaucoma and ocular hypertension. A beta-blocker that cuts aqueous humour production.

From$7.08/ bottleView

Travatan

Travoprost

2.5ml

Travoprost eye drops in a 2.5ml bottle, used in the management of glaucoma and ocular hypertension. An FP receptor agonist that raises outflow.

From$57.80/ bottleView

Combigan

Brimonidine, Timolol

0.2/0.5%

Brimonidine with timolol as 0.2/0.5% eye drops, used in the management of glaucoma and ocular hypertension. It cuts fluid production and aids drainage.

From$36.41/ bottleView

Azopt

Brinzolamide

1%

Brinzolamide 1% eye drop suspension, used in the management of glaucoma and ocular hypertension. A carbonic anhydrase inhibitor that cuts aqueous humour.

From$41.65/ bottleView

Trusopt

Dorzolamide

2%

Dorzolamide 2% eye drops, used in the management of glaucoma and ocular hypertension. A carbonic anhydrase inhibitor acting at the ciliary processes.

From$24.65/ bottleView

Cosopt

Dorzolamide, Timolol

2/0.5%

Dorzolamide with timolol as 2/0.5% eye drops, used in the management of ocular hypertension and open-angle glaucoma. Two pressure-lowering mechanisms.

From$46.18/ bottleView

Key points

  • Pressure builds when the eye’s own fluid, aqueous humour, drains too slowly through the meshwork that normally clears it.
  • Latanoprost, travoprost or bimatoprost, taken once daily to boost fluid drainage, are typically the first medicines tried.
  • Because there are no symptoms, only regular eye pressure checks by tonometry catch it and track how well treatment is working.

Why pressure builds up

The eye continuously produces a clear fluid called aqueous humour. When the drainage channels (the trabecular meshwork) cannot clear this fluid fast enough, pressure rises. Ageing, family history, thicker-than-average corneas, and ethnicity all influence this balance. Certain populations have a relatively higher prevalence of specific glaucoma subtypes, making routine IOP screening particularly worthwhile for those at increased risk.

Lowering IOP with eye drops

Treatment aims to bring IOP to a level unlikely to cause optic nerve damage. Most people start with a once-daily prostaglandin analogue such as latanoprost or travoprost, or a prostamide such as bimatoprost; these increase fluid drainage and are among the most effective single-agent options. When additional pressure reduction is needed, a beta-blocker like timolol, a carbonic anhydrase inhibitor such as dorzolamide, or an alpha-2 agonist like brimonidine may be added. The full range of eye care medicines used for IOP management is listed in the catalogue above.

Monitoring and when to act

Because ocular hypertension produces no symptoms, the only way to detect it and track treatment response is regular eye examination with tonometry. Anyone whose IOP is above 24 mmHg, who has a close relative with glaucoma, or who notices any gradual narrowing of peripheral vision should seek an eye assessment without delay. Early intervention consistently reduces the long-term risk of sight loss.

Further reading