Floaters are shadows cast on the retina by tiny strands or opacities inside the vitreous gel. They may look like dots, insects, hair-like lines, rings, smoke or cobwebs that move when the eye moves. A few old floaters that have remained unchanged for months are common, especially with increasing age or myopia.

However, a sudden increase in floaters may occur when the vitreous separates from the retina, a process called posterior vitreous detachment. During this separation, traction can occasionally create a retinal tear. Fluid may then pass through the break and separate the retina from the wall of the eye.

The American Academy of Ophthalmology guidance on flashes and floaters advises urgent assessment when new floaters are accompanied by flashes or a shadow in vision. The National Eye Institute’s retinal detachment information also lists a sudden increase in floaters, flashes and a curtain-like shadow among the warning symptoms.

The purpose of the visit is not merely to confirm “floaters”

The important clinical question is whether the retina is intact. A careful peripheral retinal examination helps decide whether the patient needs reassurance, follow-up, laser treatment or urgent retinal surgery.

Patients are encouraged to bring previous OCT scans, retinal photographs, spectacle details and records of cataract, LASIK or retinal surgery.

The inside of the eye is filled with a transparent gel called the vitreous. With age, the gel becomes more liquid and forms microscopic fibres or clumps. Light passing through these structures creates moving shadows on the retina. These shadows are perceived as floaters.

Because the opacities are inside the eye, they appear to drift when you move your eyes and may continue moving for a moment after the eye stops. They are often most noticeable against a bright sky, white wall, computer screen or well-lit page.

Contact a retina specialist promptly when any of the following symptoms appear, particularly when they begin suddenly in one eye:

• A sudden shower of many new black spots or cobwebs
• Flashing or lightning-like lights in peripheral vision
• A dark curtain, veil or shadow moving across vision
• New loss of side vision or a missing area in the visual field
• Sudden blurring after eye injury or recent eye surgery
• Red floaters, smoky vision or haze that may represent bleeding
• Floaters in a highly myopic eye
• New symptoms in the second eye after a previous retinal tear or detachment

Retinal detachment is usually painless. Therefore, absence of pain does not mean the condition is harmless. A patient may still read the smallest letters when the detachment is confined to the peripheral retina, so good central vision also does not rule out a serious problem.

Sudden floaters are a symptom rather than a diagnosis. The appearance may be similar even though the underlying cause is different. The retina examination is designed to separate benign vitreous changes from sight-threatening disease.

The American Society of Retina Specialists’ PVD resource explains that flashes and floaters may be more noticeable when PVD is complicated by a retinal tear or bleeding.

Anyone with acute floaters can have a retinal break, but the following factors increase clinical concern:

Risk factors help determine urgency and follow-up, but they cannot replace examination. A person without any recognised risk factor may still develop a retinal tear, while many highly myopic patients have harmless stable floaters.

At Crystal Clear Eye Clinic in Andheri West, the visit begins with a focused history. Dr. Jignesh Gala asks when the floater started, whether the number is increasing, whether flashes or a curtain are present, and whether there is a history of high myopia, diabetes, injury or eye surgery.

A dilated peripheral retinal examination is the key test

A normal undilated vision check cannot reliably exclude a small peripheral retinal tear. Depending on the case, indirect ophthalmoscopy and scleral indentation may be used to inspect difficult peripheral areas.

Patients from Oshiwara, Seven Bungalows, Juhu, Vile Parle, Jogeshwari and Goregaon can reach the clinic via SV Road, Andheri Railway Station or the nearby metro network.

Not every patient requires every machine. Tests are selected according to the symptoms and retinal findings.

Crystal Clear Eye Clinic uses OCT/OCT-angiography and retinal laser systems where clinically relevant. If a test or procedure is better performed at an associated surgical facility, the patient is counselled accordingly.

Treatment depends entirely on the cause. Floaters themselves are not automatically treated; the priority is to identify and manage any retinal complication.

Learn more about retina services by Dr. Jignesh Gala and the retina care available at Crystal Clear Eye Clinic.

Dilating drops may cause blurred near vision and light sensitivity for several hours. The duration varies according to the drops used, eye colour and individual response.

After an uncomplicated PVD, symptoms often become less noticeable as the brain adapts and the opacities move away from the visual axis. Nevertheless, follow-up may be advised because a retinal tear can occasionally appear after the initial examination.

The cost of a sudden floaters evaluation depends on whether the visit requires only consultation and dilation or additional imaging such as OCT. If a retinal tear, bleeding or detachment is detected, the treatment cost depends on the procedure, facility, anaesthesia and insurance terms.

• Transparent discussion before tests or procedures
• 30+ cashless TPA and insurance tie-ups, subject to policy approval
• EMI or financing options for eligible procedures
• Same-day discharge for many retinal laser and selected surgical procedures
• No promise that every insurer covers every diagnosis or treatment
• Written estimates can be provided when a procedure is advised

Review the clinic’s insurance and cashless information and confirm final eligibility with your insurer or TPA.