### Abstract

The relationship between the volume of an intraocular gas bubble and the area of retina covered by the bubble was studied using both a transparent model and a mathematical model of the vitreous cavity. The arc of contact of intraocular bubbles was calculated for vitreous cavities of various diameters. A 0.28-cm3 bubble will cover 90 degrees of retina and be of sufficient size to manage the majority of problems for which an internal retinal tamponade would be useful. Larger retinal tears require disproportionately large increases in bubble volume to achieve modest increases in the area of retina covered. Estimating bubble volume by observing the height of the bubble meniscus in the dilated pupil is subjected to errors induced by small shifts in the angle of observation. A correct evaluation requires that the plan of observation be adjusted so that it coincides with the plane of the meniscus.

Original language | English (US) |
---|---|

Pages (from-to) | 338-343 |

Number of pages | 6 |

Journal | Modern problems in ophthalmology |

Volume | 18 |

State | Published - 1977 |

Externally published | Yes |

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### ASJC Scopus subject areas

- Medicine(all)

### Cite this

*Modern problems in ophthalmology*,

*18*, 338-343.

**Geometry of intraocular gas used in retinal surgery.** / Parver, L. M.; Lincoff, H.

Research output: Contribution to journal › Article

*Modern problems in ophthalmology*, vol. 18, pp. 338-343.

}

TY - JOUR

T1 - Geometry of intraocular gas used in retinal surgery.

AU - Parver, L. M.

AU - Lincoff, H.

PY - 1977

Y1 - 1977

N2 - The relationship between the volume of an intraocular gas bubble and the area of retina covered by the bubble was studied using both a transparent model and a mathematical model of the vitreous cavity. The arc of contact of intraocular bubbles was calculated for vitreous cavities of various diameters. A 0.28-cm3 bubble will cover 90 degrees of retina and be of sufficient size to manage the majority of problems for which an internal retinal tamponade would be useful. Larger retinal tears require disproportionately large increases in bubble volume to achieve modest increases in the area of retina covered. Estimating bubble volume by observing the height of the bubble meniscus in the dilated pupil is subjected to errors induced by small shifts in the angle of observation. A correct evaluation requires that the plan of observation be adjusted so that it coincides with the plane of the meniscus.

AB - The relationship between the volume of an intraocular gas bubble and the area of retina covered by the bubble was studied using both a transparent model and a mathematical model of the vitreous cavity. The arc of contact of intraocular bubbles was calculated for vitreous cavities of various diameters. A 0.28-cm3 bubble will cover 90 degrees of retina and be of sufficient size to manage the majority of problems for which an internal retinal tamponade would be useful. Larger retinal tears require disproportionately large increases in bubble volume to achieve modest increases in the area of retina covered. Estimating bubble volume by observing the height of the bubble meniscus in the dilated pupil is subjected to errors induced by small shifts in the angle of observation. A correct evaluation requires that the plan of observation be adjusted so that it coincides with the plane of the meniscus.

UR - http://www.scopus.com/inward/record.url?scp=0017441223&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0017441223&partnerID=8YFLogxK

M3 - Article

C2 - 876074

AN - SCOPUS:0017441223

VL - 18

SP - 338

EP - 343

JO - Developments in Ophthalmology

JF - Developments in Ophthalmology

SN - 0250-3751

ER -