Long-term changes in straylight induced by corneal refractive therapy: a pilot study.

Area of Science:

• Ophthalmology
• Optometry
• Vision Science

Background:

• Corneal refractive therapy (CRT) is a method for correcting refractive errors.
• Intraocular straylight affects visual quality and can be influenced by ocular treatments.

Purpose of the Study:

• To evaluate long-term changes in intraocular straylight after corneal refractive therapy (CRT).
• To determine if reduced straylight persists after discontinuing CRT lens wear.

Main Methods:

• A prospective, longitudinal study involving 22 subjects undergoing CRT for one year.
• Intraocular straylight and high-contrast visual acuity (HCVA) were measured during treatment and after cessation of CRT.
• A control group of 10 emmetropic subjects was included.

Main Results:

• Intraocular straylight significantly decreased from baseline throughout the 12-month CRT treatment period.
• The reduction in straylight remained significant one month after discontinuing CRT lens wear.
• No correlation was found between intraocular straylight and HCVA.

Conclusions:

• Corneal refractive therapy (CRT) leads to good refractive outcomes and reduced intraocular straylight in myopia patients.
• The sustained reduction in straylight after CRT cessation suggests potential long-term benefits requiring further study.