Effects of different orthokeratology lens designs on slowing axial length elongation in children with myopia.

Aim: To elucidate whether differences exist in the impact on retarding the elongation of axial length (AL) among children with myopia when utilizing orthokeratology (ortho-k) lenses employing the corneal refractive therapy (CRT) design versus those employing the vision shaping treatment (VST) design.

Methods: This retrospective clinical trial aimed to collect and analyze AL data from individuals who wore ortho-k lenses for three years. A total of 654 subjects were enrolled and prescribed one of the three specific brands of ortho-k lenses: CRT, Euclid, and Mouldway.

[Clinical comparison study of aspheric and spherical intraocular lenses].

Objective: To compare spherical aberration and visual quality in pseudophakic patients with a modified prolate aspheric intraocular lens (IOL) with patients with a spherical IOL.

Methods: A prospective study of 169 consecutive cases (169 eyes) was conducted. All cataract patients underwent phacoemulsification were randomized to receive an aspheric IOL or a spherical IOL.