Quality of vision in patients implanted with aspherical and spherical intraocular lens: Intraindividual comparison

Abstract

Aims: To compare the quality of vision in pseudophakic patients implanted with aspherical and spherical intraocular lenses (IOLs). Materials and Methods: Randomized prospective longitudinal intrapatient comparison between aspherical and spherical IOLs performed on 22 patients who underwent bilateral cataract surgery. Best corrected visual acuity, subjective contrast sensitivity, Strehl ratio and spherical aberrations (SA), and higher order wavefront aberrations for a 3.5 mm and a 6.0 mm pupil were measured after 3 months of cataract surgery. Results: SA (Z4,0) decreased significantly in eyes with aspherical IOL implant (P = 0.004). Modulation transfer function (MTF) and point spread function (PSF) resulted no significant difference between the two groups (P = 0.87; P = 0.32). Conclusion: Although the SA is significantly lower in eyes implanted with aspherical IOL, the quality of vision determined with MTF and PSF does not significantly differ for subjective and objective parameters that were analyzed.

Keywords

• Mean deviation
• non-proliferative diabetic retinopathy
• short fluctuations
• short wave automated perimetry
• standard automated perimetry
• Antimicrobial effect
• conventional silicone oil
• endophthalmitis agents
• heavy silicone oil
• Keratoconus
• modified deep anterior lamellar keratoplasty
• steep corneal curvature
• Bevacizumab
• branch retinal vein occlusion
• intravitreal
• macular edema
• triamcinolone
• Blindness
• disability evaluation
• quality of life
• visual acuity
• Mitomycin C
• pterygium recurrence
• pterygium surgery
• subconjunctival bevacizumab injection
• Imaging in glaucoma
• optical coherence tomography
• pediatric
• retinal nerve fiber layer
• Autogenous tissue grafting
• lacrimal drainage system
• lacrimal fossa
• bypass surgery
• Cornea
• excimer laser
• growth factors
• myopia
• photorefractive keratectomy
• Triamcinolone acetonide
• human trabecular meshwork cells
• in vitro
• Hyperopic implantable collamer lens
• myopic implantable collamer lens
• optical quality
• wavefront aberrations
• Dacryocystorhinostomy
• nasolacrimal duct obstruction
• silicone tube
• Age
• anterior chamber depth
• body height
• primary angle closure glaucoma
• sex
• Children
• eye injury vitrectomy study
• eye injury
• trauma
• vitrectomy
• Corneal biomechanics
• corneal hysteresis
• corneal resistance factor
• intraocular pressure
• keratoplasty
• ocular response analyser
• Aspherical intraocular lens
• quality of vision
• spherical aberrations