Aqueous humour and vitreous humour are the clear fluids that fill the inside of the eye. They help maintain pressure, nourish tissues, and keep vision stable.
Where these fluids sit
Aqueous humour fills the front of the eye between the cornea and lens. Vitreous humour is a gel that fills the larger space behind the lens.
- Aqueous humour is made continuously by the ciliary body and drains through tiny channels.
- Vitreous humour is a jelly that usually stays the same throughout adult life.
- Both help the eye keep its rounded shape and clear optical pathway.
- Blocked aqueous drainage can raise pressure and damage the optic nerve, called glaucoma.
- Changes in the vitreous can cause floaters or contribute to retinal problems.
Why they matter to your vision
Healthy eye fluids keep vision clear and comfortable. Problems with aqueous or vitreous can lead to pressure changes, blurred sight, or flashes and floaters that need expert review.
- Sudden pain, redness, or haloes around lights can signal high pressure.
- New floaters, flashes, or a dark curtain in vision need urgent assessment.
- Regular eye checks monitor pressure and the appearance of the retina.
- Treatments can include drops, laser, or surgery depending on the cause.
- Early help often protects sight and prevents long-term damage.
