Human sclera: Thickness and surface area

Timothy Olsen, Sarah Y. Aaberg, Dayle H. Geroski, Henry F. Edelhauser

Research output: Contribution to journalArticle

237 Citations (Scopus)

Abstract

PURPOSE: To assess the mean thickness and surface area of human sclera. METHODS: Fifty-five formalin-fixed eye bank eyes were hemisected from anterior to posterior. Cross-sectional slides were taken to include a millimeter scale ruler in each photograph. Slide photographs were projected and the scleral silhouette sketched. Mean scleral thickness measurements with standard deviation were obtained. Twenty-five human eye bank eyes were used to determine total scleral surface area by either a computerized tracing method (17 globes) or volumetric calculations (eight globes) using fluid displacement. RESULTS: Mean scleral thickness ± SD was 0.53 ± 0.14 mm at the corneoscleral limbus, significantly decreasing to 0.39 ± 0.17 mm near the equator, and increasing to 0.9 to 1.0 mm near the optic nerve. The mean total scleral surface area by surface area computerized tracings was 16.3 ± 1.8 cm2 and, by the volume displacement method, was 17.0 ± 1.5 cm2. CONCLUSIONS: Scleral thickness and surface area measurements from cadaver eyes are important for ophthalmic surgeons and have implications for transscleral diffusion.

Original languageEnglish (US)
Pages (from-to)237-241
Number of pages5
JournalAmerican journal of ophthalmology
Volume125
Issue number2
DOIs
StatePublished - Jan 1 1998
Externally publishedYes

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Sclera
Eye Banks
Optic Nerve
Cadaver
Formaldehyde

ASJC Scopus subject areas

  • Ophthalmology

Cite this

Human sclera : Thickness and surface area. / Olsen, Timothy; Aaberg, Sarah Y.; Geroski, Dayle H.; Edelhauser, Henry F.

In: American journal of ophthalmology, Vol. 125, No. 2, 01.01.1998, p. 237-241.

Research output: Contribution to journalArticle

Olsen, T, Aaberg, SY, Geroski, DH & Edelhauser, HF 1998, 'Human sclera: Thickness and surface area', American journal of ophthalmology, vol. 125, no. 2, pp. 237-241. https://doi.org/10.1016/S0002-9394(99)80096-8
Olsen, Timothy ; Aaberg, Sarah Y. ; Geroski, Dayle H. ; Edelhauser, Henry F. / Human sclera : Thickness and surface area. In: American journal of ophthalmology. 1998 ; Vol. 125, No. 2. pp. 237-241.
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