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Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...
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DefinitionDiabetic retinopathy is a microvascular complication of diabetes affecting the retinal blood vessels.Risk FactorsDiabetic retinopathy is present in almost all individuals with type 1 diabetes and more than 60% of those with type 2 diabetes after two decades of disease.The risk increases with poor glycemic control, hypertension, dyslipidemia, smoking, pregnancy, and puberty.Although cataracts and glaucoma are also more frequent in people with diabetes, retinopathy remains the leading...
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Related Experiment Video

Updated: May 3, 2026

Retinal Detachment Model in Rodents by Subretinal Injection of Sodium Hyaluronate
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Preoperative Retinal Detachment Variables Causing Macular Detachment.

Shunsuke Nishimura1, Tetsuhiko Okuda1, Tomomi Higashide1

  • 1Department of Ophthalmology, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan.

Clinical Ophthalmology (Auckland, N.Z.)
|January 9, 2025
PubMed
Summary
This summary is machine-generated.

Previous cataract surgery, shorter eyes, and specific retinal tear locations are key risk factors for macular detachment in rhegmatogenous retinal detachment (RRD). Understanding these factors aids in predicting macula-off RRD outcomes.

Keywords:
axial lengthhigh myopiamacular detachmentrhegmatogenous retinal detachmentscleral bucklingvitrectomy

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Area of Science:

  • Ophthalmology
  • Retinal Diseases
  • Surgical Outcomes

Background:

  • Macular involvement in rhegmatogenous retinal detachment (RRD) significantly impacts visual prognosis.
  • Factors influencing macular status in RRD require further investigation.

Purpose of the Study:

  • To evaluate the association between preoperative characteristics and macular status in eyes with RRD.
  • Identify predictors of macula-off RRD.

Main Methods:

  • Retrospective cohort study of 1026 eyes with RRD undergoing primary surgical repair.
  • Exclusion criteria included macular hole RRD, traumatic RD, proliferative diabetic retinopathy, and other complex retinal conditions.
  • High myopia defined as axial length > 26.5 mm.

Main Results:

  • Multiple logistic regression identified prior cataract extraction and shorter axial length (≤24.5 mm) as significant risk factors for macula-off RRD.
  • Retinal break location was also critical: superior and temporal breaks increased odds of macular detachment, while superior nasal breaks decreased them.
  • High myopia was prevalent (34.2%), with peak occurrences in the 40-59 age groups.

Conclusions:

  • Previous cataract extraction, shorter axial length, and specific retinal break locations (superior, temporal) are significant risk factors for macular detachment in RRD.
  • These findings are crucial for preoperative risk assessment and patient counseling in RRD management.