RETINA NOTE

Lincoff’s Rules: Localising the Retinal Break

Read the configuration of subretinal fluid, predict where the causative break is most likely to lie, and know where to search first.

Rhegmatogenous Retinal Detachment Resident · Exam Preparation · Clinician

Watch the lecture for the animated retinal-detachment configurations, then use this companion note for structured revision and clinical application.

Why localising the break matters

A rhegmatogenous retinal detachment (RRD) develops when liquefied vitreous passes through a full-thickness retinal break into the subretinal space, separating the neurosensory retina from the retinal pigment epithelium.

Identifying the causative break — and looking carefully for additional breaks — is therefore a central part of evaluating an RRD and planning treatment.

Lincoff and Gieser showed that the configuration of subretinal fluid is not random. Its spread is influenced by the location of the break, anatomical boundaries and gravity, so the shape of the detachment can help predict where the primary break is most likely to lie. [1]

The rules are therefore best used as a search guide: they tell you where to look first, not where to stop.

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Where are retinal breaks commonly found?

Approximate proportions of retinal-break location in rhegmatogenous retinal detachment are: [3]

Superotemporal 60%
Superonasal 15%
Inferotemporal 15%
Inferonasal 10%

The superotemporal quadrant is therefore the commonest location. However, the entire retinal circumference must still be examined carefully.

When more than one break is present, an additional break may lie within 90° of the first break in approximately 50% of eyes. [3]

Finding one break does not end the examination. Search the adjacent retina carefully, then inspect the entire retinal circumference.

Read the detachment before looking for the break

Before applying an individual Lincoff rule, first describe the configuration of the retinal detachment. Five observations usually narrow the area in which the primary break should be sought.

  1. 1
    Is the detachment mainly superior or inferior?
  2. 2
    Is it shallow or bullous?
  3. 3
    Are the nasal and temporal fluid levels symmetrical or asymmetrical?
  4. 4
    Does the subretinal fluid cross the 12-o’clock meridian?
  5. 5
    Which is the highest border of the detachment?

These five observations form the framework for interpreting the four classic Lincoff patterns.


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Rule 1 — Superior temporal or nasal detachment

Lincoff Rule 1 showing a superior temporal or nasal retinal detachment with unequal borders and the primary break near the highest border.

In a superior temporal or superior nasal retinal detachment with unequal borders, the primary retinal break lies within approximately 1½ clock hours of the highest border in 98% of cases. [1] [2]


Rule 2 — Superior or total detachment crossing 12 o’clock

Lincoff Rule 2 showing a superior or total retinal detachment crossing the 12-o'clock meridian.

When a superior or total retinal detachment crosses the 12-o’clock meridian, the primary retinal break is most likely to lie at or close to 12 o’clock, within the superior search zone extending approximately 1½ clock hours to either side. This relationship was reported in approximately 93% of cases. [1] [2]


Rule 3 — Inferior retinal detachment

Lincoff Rule 3 showing a shallow inferior retinal detachment with unequal borders, where the higher side indicates the side of the retinal break.

In a shallow inferior retinal detachment with unequal fluid levels, the side on which the detachment rises higher indicates the side of the inferior retinal break in approximately 95% of cases. [1] [2]


Rule 4 — Inferior bullous retinal detachment

Lincoff Rule 4 showing a symmetrical bullous inferior retinal detachment arising from a superior retinal break near 12 o’clock.

A symmetrical bullous inferior retinal detachment usually arises from a superior retinal break, classically located close to 12 o’clock. [1] [2]


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Clinical Pearl
Shallow inferior detachment: first consider an inferior retinal break.
Bullous inferior detachment: search carefully for a superior retinal break.

Supplementary patterns

These additional configurations extend the same principles of subretinal-fluid spread and break localisation. [1] [3] [4]

Symmetrical shallow inferior detachment

When a shallow inferior detachment has approximately equal nasal and temporal fluid levels, the retinal break is usually located inferiorly near 6 o’clock.

Near-total detachment with an inferior attached wedge

If most of the retina is detached but an inferior wedge remains attached, with subretinal fluid communicating superiorly across the 12-o’clock meridian, search the superior retina around 12 o’clock.

Subtotal detachment with a superior attached wedge

When a superior wedge remains attached and subretinal fluid does not freely cross the superior vertical meridian, search the peripheral retina near the highest border of the detachment.

Bullous subtotal detachment

If a subtotal detachment is markedly bullous, the causative break is likely to be superior. Begin the search near the highest superior extent of the fluid.


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Do Not Confuse

The four classic Lincoff rules are the core framework. The additional configurations above are supplementary patterns that apply the same principles of subretinal-fluid spread. [1] [3]


A practical localisation approach

Rather than memorising every configuration in isolation, assess the detachment in the same sequence each time.

1

Is it bullous?

A markedly bullous inferior detachment should immediately raise suspicion of a superior retinal break.

2

Is it superior or inferior?

In a superior detachment, assess the highest border and whether fluid crosses 12 o’clock. In an inferior detachment, decide whether it is shallow or bullous and whether the borders are equal.

3

Are the borders unequal?

If one side rises higher than the other, search toward the higher border.

4

Does fluid cross 12 o’clock?

If superior subretinal fluid crosses the vertical meridian, concentrate the search around 12 o’clock.

5

Then search beyond the predicted site

Examine the neighbouring retina carefully, look for additional breaks, and then inspect the entire retinal circumference. [2] [6]

Lincoff’s rules tell you where to look first — not where to stop.

Pseudophakic RRD

In pseudophakic rhegmatogenous retinal detachment, retinal breaks may be small, peripheral or multiple and can be more difficult to identify. Lincoff’s rules can help direct the initial search, but a meticulous examination of the peripheral retina remains essential. [6]


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Rapid revision

  • First decide whether the detachment is shallow or bullous.
  • Unequal borders direct the search toward the higher border.
  • If superior subretinal fluid crosses 12 o’clock, search around 12 o’clock.
  • A shallow inferior detachment usually points toward an inferior break.
  • A symmetrical shallow inferior detachment suggests a break near 6 o’clock.
  • A bullous inferior detachment should prompt a careful search superiorly.
Finding one break does not complete the examination. The entire retinal circumference should still be inspected for additional breaks.

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References

  1. 1.

    Lincoff H, Gieser R. Finding the retinal hole. Arch Ophthalmol. 1971;85(5):565–569. doi:10.1001/archopht.1971.00990050567007

  2. 2.

    Sultan ZN, Agorogiannis EI, Iannetta D, Steel D, Sandinha T. Rhegmatogenous retinal detachment: a review of current practice in diagnosis and management. BMJ Open Ophthalmol. 2020;5(1):e000474. doi:10.1136/bmjophth-2020-000474

  3. 3.

    Turgut B. Remembering the Modified Lincoff’s rules for practical identification of retinal break in rhegmatogenous retinal detachment. Adv Ophthalmol Vis Syst. 2018;8(5):267–268. doi:10.15406/aovs.2018.08.00318

  4. 4.

    Yoshida I, Shiba T, Hori Y, Maeno T. Relationships between retinal break locations and the shapes of the detachments. Clin Ophthalmol. 2018;12:2213–2222. doi:10.2147/OPTH.S177594

  5. 5.

    Xiong J, Tran T, Waldstein SM, Fung AT. A review of rhegmatogenous retinal detachment: past, present and future. Wien Med Wochenschr. 2025;175(7–8):186–202. doi:10.1007/s10354-025-01085-9

  6. 6.

    Gupta D, Ching J, Tornambe PE. Clinically undetected retinal breaks causing retinal detachment: a review of options for management. Surv Ophthalmol. 2018;63(4):579–588. doi:10.1016/j.survophthal.2017.08.002

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