Eye Floaters

Eye floaters are small moving shapes that drift across your field of vision as the eye moves. These visual obstructions can be as small as dark spots, semi-transparent threads, or delicate, hair-like cobwebs that appear to swim just behind your gaze. They are incredibly common and typically harmless – they are the internal shadows cast onto your retina by microscopic changes occurring within the deeper chambers of your eye. 

For the vast majority of individuals, these shapes do not cause any permanent detriment to daily sight, and many people live with eye floaters for years without even noticing they are present.

Eye floaters are caused by a natural, age-related change within the clear gel that fills the inside of your eye. Known as the vitreous humour, this gel is composed of 99% water and 1% microscopic solids. In younger patients, it maintains a perfectly transparent, uniform consistency. However, as your eyes grow older, the gel naturally begins to shrink and coagulate. This process causes the tiny structural solids to clump together and lose their transparency. When light enters the eye, these microscopic strands cast tiny shadows onto the light-sensitive retina at the back of the eye, which you ultimately perceive as drifting spots or strands.

• Long-term floaters: usually a symptom of vitreous degeneration and can be very annoying if you suffer from them. They are caused by the break-up of the vitreous jelly which fills the inside of the eye. Vitreous gel is 99% water and 1% clear solids that are present from birth. The solids start to become opaque as the gel degenerates.
• Acute floaters: a sudden occurrence of floaters, sometimes associated with flashing lights, may indicate that a posterior vitreous detachment (P.V.D), retinal detachment, or other ocular emergency is occurring. Acute floaters should be treated as a medical emergency and professional medical advice should be sought within 24 hours.

In a young eye, the internal vitreous gel is perfectly transparent and uniform. Over time, the natural ageing process causes fluid pockets to form within this gel, making it shrink and gradually peel away from the retina.Although the brain naturally adapts to filter these particles from your daily awareness, a forceful separation can cause complications. In some people with risk factors such as high prescriptions, exercise, eye or head trauma flashes and floaters can indicate a retinal detachment. can lead to a sight-threatening retinal detachment if left untreated.

When you notice eye floaters, you are actually seeing the internal shadows cast onto your retina by tiny particles drifting inside your eye. This is a very common part of the natural ageing process, usually appearing gradually as small spots, translucent threads, or cobwebs that flick across your field of vision. As these particles swim within the eye’s internal gel, they tend to drift lazily, lagging slightly behind your eye movements. Aside from these distinct shapes, some people experience a generalised mistiness or fogging of their vision, which scatters incoming light and causes frustrating glare in bright conditions. While a slow increase in floaters is entirely normal as your eyes mature, any sudden change or rapid onset of new shapes requires an immediate professional assessment to protect your retinal health.

Many patients naturally wonder whether eye floaters will eventually go away. Whilst the physical microscopic particles usually remain permanently suspended within the vitreous gel, they generally become much less noticeable over time. This gradual improvement is due to a natural process called neuro-adaptation, where the brain adapts to visual shifts and filters out these internal shadows as background noise. However, for a minority of people, these shapes remain highly intrusive and actively disrupt the quality of vision. In these persistent cases, advanced ophthalmic treatments are available, beginning with a comprehensive clinical assessment to establish the precise underlying cause.