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Related Concept Videos

Focusing of Light in the Eye01:16

Focusing of Light in the Eye

Light rays enter the eye through the cornea, a transparent dome-shaped tissue that is the eye's outermost layer. The cornea bends or refracts, light rays traveling to the pupil. The shape of the cornea determines how much of the light is bent and whether the image will be focused correctly on the retina at the back of the eye. Once the light has passed through both refraction layers, it converges into a single focal point onto a small area. This is where photoreceptors start transforming...
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Angle Closure Glaucoma: Treatment

Angle-closure glaucoma, or closed-angle glaucoma, is an eye condition where the iris bulges out and blocks the iridocorneal angle, resulting in a buildup of aqueous humor and increased intraocular pressure. Immediate medical attention is necessary due to the sudden onset of symptoms. The treatment for angle-closure glaucoma includes short-term and long-term approaches. Short-term treatment involves using eye drops like pilocarpine to lower intraocular pressure by increasing aqueous humor...
Open Angle Glaucoma: Treatment01:27

Open Angle Glaucoma: Treatment

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Related Experiment Video

Updated: May 8, 2026

Correction of Presbyopia by Monocular Bi-Aspheric Ablation Profile
05:46

Correction of Presbyopia by Monocular Bi-Aspheric Ablation Profile

Published on: September 20, 2024

[Keratoconus lenses: the small correction miracle].

U Klühspies1, A Grunder, S Goebels

  • 1Kontaktlinsenambulanz, Universitätsklinikum des Saarlandes UKS, Kirrbergerstr. 1, 66424, Homburg, Deutschland. ulrike.kluehspies@uks.eu

Der Ophthalmologe : Zeitschrift Der Deutschen Ophthalmologischen Gesellschaft
|August 17, 2013
PubMed
Summary
This summary is machine-generated.

Contact lenses effectively correct vision in keratoconus, a corneal disease causing irregular shapes. This overview details fitting strategies for improved quality of life and work for patients with keratoconus.

Related Experiment Videos

Last Updated: May 8, 2026

Correction of Presbyopia by Monocular Bi-Aspheric Ablation Profile
05:46

Correction of Presbyopia by Monocular Bi-Aspheric Ablation Profile

Published on: September 20, 2024

Area of Science:

  • Ophthalmology
  • Corneal Diseases
  • Optometry

Context:

  • Keratoconus is a progressive, non-inflammatory corneal disease characterized by cone-shaped protrusion and thinning.
  • Significant visual impairment results from the highly irregular corneal surface, impacting daily activities and quality of life.

Purpose:

  • To provide a comprehensive overview of current contact lens fitting techniques for keratoconus.
  • To present findings and insights on managing optical errors in keratoconus patients through contact lens correction.

Summary:

  • Contact lenses offer an efficient solution for correcting the optical aberrations caused by keratoconus.
  • The article reviews established and novel contact lens fitting approaches tailored to the unique challenges of keratoconus.
  • Successful contact lens fitting can significantly restore visual function and improve patient outcomes.

Impact:

  • Improved visual acuity and quality of life for individuals with keratoconus.
  • Reduced reliance on more invasive treatments by optimizing contact lens correction.
  • Enhanced understanding of contact lens fitting parameters for irregular corneas.