Macular hole surgery: vitrectomy, gas bubbles, and face-down positioning

A macular hole is a full-thickness opening in the central macula. Because the macula is responsible for fine central vision, even a small structural defect can distort reading and facial detail.

How macular holes are diagnosed

NEI identifies optical coherence tomography (OCT) as the key imaging test. OCT shows the hole's size, configuration, vitreomacular traction, and postoperative closure.

Observation versus surgery

Small holes with mild symptoms may sometimes be observed, but NEI notes that surgery is recommended for most macular holes that significantly affect vision or progress.

The operation

Vitrectomy removes vitreous traction. The surgeon often peels the internal limiting membrane around the macula and then places a gas bubble in the eye to support closure.

Why a gas bubble helps

The bubble acts as an internal tamponade over the macula. NEI describes it as a temporary bandage that helps hold the edges of the hole together while healing occurs.

Face-down positioning

Positioning recommendations are not identical for every hole. Some surgeons use several days of face-down positioning, while smaller holes and modern techniques may require less. Follow the surgeon's exact instructions rather than copying another patient's protocol.

Travel restrictions

Vision recovery

Anatomical closure can occur before visual recovery plateaus. Final acuity depends on hole duration, size, retinal changes, and preoperative visual damage.

Cataract

Vitrectomy commonly accelerates cataract in phakic older adults. Some surgeons discuss combined cataract surgery or expect lens surgery later.

What if the hole does not close?

Persistent or reopened holes can sometimes be re-operated on using additional techniques. Ask the surgeon what closure rate they expect for your hole size/type and what the second-line plan would be.

Questions to ask

• How large is the hole on OCT?
• How long do you think it has been present?
• Will you peel the ILM?
• Which gas will you use?
• How much face-down positioning?
• How long before I can fly?
• What is the expected closure and visual-recovery range?

Frequently asked questions

The bubble closes the hole mechanically; the retina still needs time to recover function.

Hole size and prognosis

Smaller, more recent holes generally have a stronger chance of anatomical closure and better visual recovery than very large or long-standing holes. OCT metrics help the surgeon estimate prognosis and choose tamponade/positioning strategy.

Internal limiting membrane peeling

ILM peeling reduces tangential traction and is widely used because it improves closure rates in many full-thickness macular holes. Some surgeons use dyes to visualize the membrane.

What face-down positioning is trying to accomplish

The goal is not punishment or “keeping the retina from falling.” It is to place the gas bubble against the macula so the hole edges remain apposed during early healing.

How patients manage positioning

Special pillows, massage-table-style face supports, rented chairs, mirrors, and scheduled breaks can make positioning more tolerable. Patients with neck, back, pulmonary, or mobility problems should discuss feasibility before surgery.

When positioning is hard or impossible

The surgeon may adapt gas choice, positioning duration, or operative technique based on hole size and patient limitations. Do not conceal a physical inability to maintain face-down posture.

Visual rehabilitation after closure

Even after OCT confirms closure, reading acuity and distortion may improve slowly. Some residual metamorphopsia can persist because photoreceptor architecture takes time to reorganize and may not fully normalize.

How to compare two surgeon recommendations

If two ophthalmologists recommend different operations, ask each to show the imaging or examination finding driving the choice. Then compare the underlying diagnosis, not merely the procedure names. Different recommendations can reflect different interpretations of anatomy, different acceptable risk thresholds, or different technical experience.

Travel and follow-up are part of the procedure

Eye surgery often has time-sensitive postoperative checks. Retinal gas, graft attachment, intraocular pressure, wound healing, or corneal epithelium can all create reasons to delay travel. International patients should plan around the surgeon's required checkpoints rather than buying a fixed return flight first.

What records to take home

• Exact diagnosis
• Operative report
• Implant, graft, gas, or device details when applicable
• Medication schedule
• Postoperative restrictions
• Warning signs
• Surgeon contact
• Relevant OCT, topography, retinal images, or visual-field results