Sentence examples for irregular astigmatism from inspiring English sources

To determine the refractive efficacy, predictability, stability, and complication rate of Intralase femtosecond laser assisted astigmatic keratotomy (AK) for irregular astigmatism after penetrating keratoplasty (PKP).

Fourier harmonic analysis can decompose videokeratography data into spherical power, regular astigmatism, and irregular astigmatism (asymmetry and higher-order irregularity).

The only symptom is deterioration of vision due to irregular astigmatism caused by the changing corneal curvature.

If significant, visual impairment from irregular astigmatism can be difficult to treat, although rigid contact lenses may help.

The first contact lens, made of glass, was developed by Adolf Fick in 1887 to correct irregular astigmatism.

A troublesome form of astigmatism, "irregular" astigmatism, can be caused by corneal scars and certain corneal diseases and is sometimes seen after corneal transplant.

In addition, the eye can have scarring, irregular astigmatism, and changes to the ocular surface.

To evaluate the effect of superior and temporal scleral incisions on regular and irregular astigmatism in small incision cataract surgery.

To evaluate the changes in regular and irregular corneal astigmatism after 25-gauge transconjunctival sutureless vitrectomy and 20-gauge standard vitrectomy.

To evaluate the effect on visual acuity of the implantation of a new intraocular pinhole device (Xtrafocus) in cases of irregular corneal astigmatism with significant visual impairment.

To compare changes in corneal shape and in regular and irregular corneal astigmatism after 3.0- or 2.0-mm clear corneal incision cataract surgery (CICS) with those occurring after 3.0- or 2.0-mm scleral incision cataract surgery (SICS).