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Record W7132862519

Influence of the scleral shell on the biomechanical environment of the human optic nerve head

2008· dissertation· W7132862519 on OpenAlexfundno aff
Richard Eric Norman

Bibliographic record

VenueTSpace · 2008
Typedissertation
Language
FieldMedicine
TopicGlaucoma and retinal disorders
Canadian institutionsnot available
FundersNatural Sciences and Engineering Research Council of CanadaCanadian Institutes of Health Research
KeywordsOptic nerveBiomechanicsIntraocular pressureHuman eyeHead (geology)Displacement (psychology)Glaucoma
DOInot available

Abstract

fetched live from OpenAlex

Glaucoma, a leading cause of blindness, is a disease of unclear aetiology. A leading hypothesis is that elevated intraocular pressure (IOP) leads to damage of the tissues of the optic nerve head (ONH), leading to vision loss. Individual susceptibility to IOP is suspected to vary, perhaps due to anatomical differences. We investigate the role of the sclera, the principal load-bearing tissue of the eye, in ONH biomechanics. Individual-specific measurements of scleral thickness acquired through MRI of human eyes are presented. We observe significant inter-individual scleral thickness variations. The effect of these variations is investigated using finite element models of both physiological and idealized corneoscleral shells. Their effect on ONH biomechanics is determined by measuring strain and displacement within the tissues of an idealized ONH. We observe substantial variation in these outcome measures over the physiological range of scleral dimensions, suggesting that individual susceptibility to IOP may vary significantly.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.001
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.001
Threshold uncertainty score0.003

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.001
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.021
GPT teacher head0.298
Teacher spread0.277 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations0
Published2008
Admission routes1
Has abstractyes

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