Optical quality and visual performance with customised soft contact lenses for keratoconus

被引:30
作者
Jinabhai, Amit [1 ]
O'Donnell, Clare [1 ,2 ,3 ]
Tromans, Cindy [1 ,4 ]
Radhakrishnan, Hema [1 ]
机构
[1] Univ Manchester, Fac Life Sci, Manchester, Lancs, England
[2] Optegra Eye Hosp, Optegra Eye Sci, Manchester, Lancs, England
[3] Aston Univ, Sch Life & Hlth Sci, Birmingham B4 7ET, W Midlands, England
[4] Cent Manchester Univ Hosp NHS Fdn Trust, Manchester Acad Hlth Sci Ctr, Manchester, Lancs, England
关键词
aberration-controlling contact lenses; coma aberrations; higher-order aberrations; keratoconus; rigid gas-permeable contact lenses; toric soft contact lenses; HIGHER-ORDER ABERRATIONS; WAVE-FRONT ABERRATION; OCULAR ABERRATIONS; EYES; ACUITY; COMPENSATION; REFRACTION; SURFACE; SIGNS; WEAR;
D O I
10.1111/opo.12133
中图分类号
R77 [眼科学];
学科分类号
100212 ;
摘要
Purpose: This study investigated how aberration-controlling, customised soft contact lenses corrected higher-order ocular aberrations and visual performance in keratoconic patients compared to other forms of refractive correction (spectacles and rigid gas-permeable lenses). Methods: Twenty-two patients (16 rigid gas-permeable contact lens wearers and six spectacle wearers) were fitted with standard toric soft lenses and customised lenses (designed to correct 3rd-order coma aberrations). In the rigid gas-permeable lens-wearing patients, ocular aberrations were measured without lenses, with the patient's habitual lenses and with the study lenses (Hartmann-Shack aberrometry). In the spectacle-wearing patients, ocular aberrations were measured both with and without the study lenses. LogMAR visual acuity (high-contrast and low-contrast) was evaluated with the patient wearing their habitual correction (of either spectacles or rigid gas-permeable contact lenses) and with the study lenses. Results: In the contact lens wearers, the habitual rigid gas-permeable lenses and customised lenses provided significant reductions in 3rd-order coma root-mean-square (RMS) error, 3rd-order RMS and higher-order RMS error (p <= 0.004). In the spectacle wearers, the standard toric lenses and customised lenses significantly reduced 3rd-order RMS and higher-order RMS errors (p <= 0.005). The spectacle wearers showed no significant differences in visual performance measured between their habitual spectacles and the study lenses. However, in the contact lens wearers, the habitual rigid gas-permeable lenses and standard toric lenses provided significantly better high-contrast acuities compared to the customised lenses (p <= 0.006). Conclusions: The customised lenses provided substantial reductions in ocular aberrations in these keratoconic patients; however, the poor visual performances achieved with these lenses are most likely to be due to small, on-eye lens decentrations.
引用
收藏
页码:528 / 539
页数:12
相关论文
共 64 条
[21]   Visual performance and optical quality with soft lenses in keratoconus patients [J].
Jinabhai, Amit ;
Radhakrishnan, Hema ;
Tromans, Cindy ;
O'Donnell, Clare .
OPHTHALMIC AND PHYSIOLOGICAL OPTICS, 2012, 32 (02) :100-116
[22]   Repeatability of ocular aberration measurements in patients with keratoconus [J].
Jinabhai, Amit ;
Radhakrishnan, Hema ;
O'Donnell, Clare .
OPHTHALMIC AND PHYSIOLOGICAL OPTICS, 2011, 31 (06) :588-594
[23]   A Comparison between Subjective Refraction and Aberrometry-Derived Refraction in Keratoconus Patients and Control Subjects [J].
Jinabhai, Amit ;
O'Donnell, Clare ;
Radhakrishnan, Hema .
CURRENT EYE RESEARCH, 2010, 35 (08) :703-714
[24]   Visual Acuity and Ocular Aberrations With Different Rigid Gas Permeable Lens Fittings in Keratoconus [J].
Jinabhai, Amit ;
Radhakrishnan, Hema ;
O'Donnell, Clare .
EYE & CONTACT LENS-SCIENCE AND CLINICAL PRACTICE, 2010, 36 (04) :233-237
[25]  
Jupiter David G., 2000, CLAO Journal, V26, P14
[26]   Customized hydrogel contact lenses for keratoconus incorporating correction for vertical coma aberration [J].
Katsoulos, Costas ;
Karageorgiadis, Lefteris ;
Vasileiou, Nikos ;
Mousafeiropoulos, Theodore ;
Asimellis, George .
OPHTHALMIC AND PHYSIOLOGICAL OPTICS, 2009, 29 (03) :321-329
[27]   A 48-YEAR CLINICAL AND EPIDEMIOLOGIC-STUDY OF KERATOCONUS [J].
KENNEDY, RH ;
BOURNE, WM ;
DYER, JA .
AMERICAN JOURNAL OF OPHTHALMOLOGY, 1986, 101 (03) :267-273
[28]  
Kollbaum P, 2008, OPTOMETRY VISION SCI, V85, P817, DOI 10.1097/OPX.0b013e318185280e
[29]   Magnitude and orientation of zernike terms in patients with keratoconus [J].
Kosaki, Ryo ;
Maeda, Naoyuki ;
Bessho, Kenichiro ;
Hori, Yuichi ;
Nishida, Kohji ;
Suzaki, Asaki ;
Hirohara, Yoko ;
Mihashi, Toshifumi ;
Fujikado, Takashi ;
Tano, Yasuo .
INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, 2007, 48 (07) :3062-3068
[30]   Characteristics and functional outcomes of 130 patients with keratoconus attending a specialist contact lens clinic [J].
Lim, N ;
Vogt, U .
EYE, 2002, 16 (01) :54-59