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Open Angle Glaucoma: Treatment01:27

Open Angle Glaucoma: Treatment

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In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This causes a buildup of aqueous humor in the anterior chamber, leading to a sudden increase in intraocular pressure. The treatment for open-angle glaucoma focuses on reducing the elevated intraocular pressure by either decreasing the secretion of aqueous humor or increasing its outflow.
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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...
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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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Optical perception, or vision, is an extraordinary sense dependent on converting light signals received via the ocular organs. These organs, known as eyes, are securely positioned within the bony cavities of the skull, called orbits. The orbits serve a dual purpose: a protective shield for the ocular globes and a stable attachment point for the soft ocular tissues. The eye's external protective mechanisms include the eyelids, which are edged with lashes that act as a barrier against foreign...
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Scleral Cross-linking Using Riboflavin and Ultraviolet-A Radiation for Prevention of Axial Myopia in a Rabbit Model
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Effective Decrease in Myopia Progression With Two Mechanisms of Management.

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    Low-dose atropine effectively slows myopia progression in children over three years, with greater effects seen in later years. Combination therapies showed no significant added benefit, but dual-focus lenses reduced rebound effects.

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    Area of Science:

    • Ophthalmology
    • Pediatric Optometry
    • Myopia Control

    Background:

    • Myopia progression is a significant concern in children.
    • Effective interventions are needed to slow axial elongation and prevent high myopia.
    • Low-dose atropine and specialized contact lenses are emerging treatments.

    Purpose of the Study:

    • To evaluate the efficacy of 0.01% atropine in inhibiting myopia progression over three years.
    • To assess the additive effect of peripheral defocus contact lenses with atropine.
    • To investigate the rebound effect of myopia progression after treatment cessation.

    Main Methods:

    • A prospective study involving 127 children aged 5-8 years.
    • Three treatment groups: atropine with single-vision spectacles (At+SV), atropine with peripheral defocus contact lenses (At+PDCL), and atropine with dual-focus contact lenses (At+DF).
    • A control group received single-vision spectacles. Refraction was measured every six months for three years and one year post-cessation.

    Main Results:

    • Myopia progression significantly decreased in atropine groups over three years, particularly in the second and third years (P < .01).
    • No statistically significant difference in myopia progression was observed between At+SV, At+PDCL, and At+DF groups after three years (P < .05).
    • The At+DF group showed a statistically significant lower rebound effect compared to the At+SV group post-treatment.

    Conclusions:

    • 0.01% atropine is effective in decelerating myopia progression over three years, with enhanced efficacy in later treatment years.
    • Combination therapies with peripheral defocus contact lenses did not demonstrate a statistically significant advantage over atropine monotherapy in this cohort.
    • Dual-focus contact lenses may mitigate the rebound effect of myopia progression after cessation of atropine treatment.