Clinical Outcomes of Sequential Intrastromal Corneal Ring Segments and an Extended Range of Vision Intraocular Lens Implantation in Patients with Keratoconus and Cataract

Table 1

Patient demographics. Age, pre-ICRS implantation manifest refraction (spherical equivalent (SE), refractive sphere and cylinder) and prekeratometry (K) readings shown as mean ± standard deviation (SD) and range.

Characteristic	Value
Eyes (n)	17
Age (years)	59 ± 12.8
Mean SE (D); Range	−5.35 ± 5.09; (+2.50 to −14.00)
Mean refractive sphere (D); Range	−3.97 ± 4.98; (+3.50 to −13.00)
Mean refractive cylinder (D); Range	−2.77 ± 1.04; (−1.50 to −5.00)
Mean minimum K (D); Range	47.06 ± 3.71; (42.5 to 55.5)
Mean maximum K (D); Range	48.79 ± 3.69; (45 to 57.75)