Alterations in contact lens fitting parameters following cross-linking in keratoconus patients of Indian ethnicity

Singh, Kehar; Bhattacharyya, Mainak; Arora, Ritu; Dangda, Sonal; Mutreja, Ankush

doi:10.1007/s10792-017-0615-2

Cited by 6 publications

(5 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…in their study. [18] Although the corneal sensations are reduced following CXL as reported in the literature, one patient developed CL intolerance in this study. [23]…”

Section: Discussionmentioning

confidence: 52%

“…who have shown reduction in spherical and cylinder values in their study. [18] However, the mean postrefraction CL power is higher – this may be due to the steeper base curve post-CXL compared to preoperative base curve. The daily mean awake wearing time in this study was 10.36 h as against 8 h/day as reported by Singh et al .…”

Section: Discussionmentioning

confidence: 99%

“…[21415] There are reports on the changes of corneal curvature and other corneal topography indices with CXL. [9161718] CL use after CXL is reported in the literature. [181920] The aim of the current study is to evaluate the rigid CL fitting following CXL.…”

Section: Introductionmentioning

confidence: 99%

“…[9161718] CL use after CXL is reported in the literature. [181920] The aim of the current study is to evaluate the rigid CL fitting following CXL.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Contact lens fitting after corneal collagen cross-linking

et al. 2019

View full text Add to dashboard Cite

BACKGROUND:Contact lenses (CLs) remain the mainstay in improving vision in patients having keratoconus. With corneal collagen cross-linking (CXL) performed worldwide, whether the same CLs can be used or needs replacement needed to be assessed and considered.AIMS:The aim of this study was to evaluate the changes in CL fitting following CXL.SETTINGS AND DESIGN:This is a retrospective study conducted at a tertiary center.SUBJECTS AND METHODS:We analyzed the medical records of patients who underwent CXL and used CL. Data collected included demographics, pre- and post-CXL refraction, corneal topography, anterior-segment examination, and CL [rigid gas permeable(RGP)] fitting details and duration between CXL and RGP fitting.STATISTICAL ANALYSIS:Descriptive analysis and paired t-test were used to compare the pre- and post-CXL data on refraction, visual acuity, and CL parameters. The statistical significance was kept at P < 0.05.RESULTS:Thirty-four eyes (keratoconus = 32, pellucid marginal degeneration = 1, and post-LASIK ectasia = 1) of 27 patients who used CL before and after undergoing CXL were analyzed. Mean duration between CXL and RGP lens use was 2.53 months. Mean sphere and cylinder post-CXL was −4.11 ± 4.32 D and −3.54 ± 2.51 D, respectively. A mean change of 0.75 ± 3.72 D sphere and 0.71 ± 3.39 D cylinder was noted post-CXL. The post-CXL best spectacle-corrected visual acuity (CVA) was 0.52 ± 0.36 and with RGP lens it was 0.09 ± 0.18. There was no significant difference in pre- and post-CXL RGP lens CVA (0.07 ± 0.09 and 0.09 ± 0.18, respectively; P = 0.556). Pre-CXL, 3-point-touch fitting was in 24 eyes (70.59%) and central fluorescein pooling was in 10 eyes (29.41%). Post-CXL, 30 eyes (88.24%) had 3-point-touch and central fluorescein pooling was found in four eyes (11.76%). One patient had CL intolerance after CXL. Of the 32 keratoconus eyes, 62.5% (n = 20 eyes) were prescribed new lenses; 37.5% (n = 12 eyes) continued using own lenses.CONCLUSIONS:There was no significant difference in refraction, topography indices, and RGP lens parameters pre- and post-CXL. However, changes in RGP lens fitting characteristics suggest a possible change in shape or apex location of the cornea after CXL. RGP lenses remain the best option to improve visual acuity after CXL in corneal ectasia.

show abstract

“…in their study. [18] Although the corneal sensations are reduced following CXL as reported in the literature, one patient developed CL intolerance in this study. [23]…”

Section: Discussionmentioning

confidence: 52%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…[9161718] CL use after CXL is reported in the literature. [181920] The aim of the current study is to evaluate the rigid CL fitting following CXL.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Contact lens fitting after corneal collagen cross-linking

et al. 2019

View full text Add to dashboard Cite

show abstract

“…The current study also found that CXL surgery did not increase compliance with RGPCL wear. Previous studies have shown that RGPCL wear post-CXL was relatively well tolerated due to the decreased corneal sensitivity and the flattening effect of CXL [11,20,21]. Unlu et al [11] also found that the mean duration of RGPCL wear increased after CXL surgery.…”

Section: Discussionmentioning

confidence: 98%

Factors Affecting Long-Term Compliance with Rigid Gas-Permeable Contact Lens Wear in Patients with Keratoconus

Xue

Zhou

Chen

et al. 2022

JCM

View full text Add to dashboard Cite

The purpose of the study was to investigate the factors affecting long-term compliance with rigid gas-permeable contact lens (RGPCL) wear in patients with keratoconus (KC). A total of 189 patients with KC (374 eyes) were included in the study, and were divided into two groups: the compliant group and the non-compliant group. Corneal topographic measurements, refractive results, and RGPCL parameters were compared between the two groups. A vision-related quality of life questionnaire was completed by all of the patients. The results demonstrated that patients diagnosed with bilateral KC were more compliant with RGPCL wear than patients diagnosed with unilateral KC (p = 0.0167). There were no significant differences between the compliant and non-compliant groups in terms of their corneal topographic measurements, refractive results, RGPCL parameters, or corneal cross-linking surgery history (all p > 0.05). In contrast, KC patients’ subjective experience with RGPCL wear—including visual acuity (p = 0.006), overall satisfaction (p < 0.001), quality of life (p < 0.001), and good adaptation during the short-term (p < 0.001)—had a significant effect on the long-term compliance with RGPCL wear. In conclusion, patients’ subjective experiences, rather than their ocular biometrics, significantly influence their long-term compliance with RGPCL wear.

show abstract

Clinical evaluation of different types of contact lenses in keratoconus management

Saraç

Kars

Temel

et al. 2019

Contact Lens and Anterior Eye

View full text Add to dashboard Cite

Alterations in contact lens fitting parameters following cross-linking in keratoconus patients of Indian ethnicity

Abstract: Despite no statistically significant change in objective parameters of lens fit, a tendency for flatter lens fit along with contact lens induced further flattening of the ectatic cornea which resulted in marked improvement in both objective and subjective contact lens fit.

Cited by 6 publications

References 38 publications

Contact lens fitting after corneal collagen cross-linking

Contact lens fitting after corneal collagen cross-linking

Factors Affecting Long-Term Compliance with Rigid Gas-Permeable Contact Lens Wear in Patients with Keratoconus

Clinical evaluation of different types of contact lenses in keratoconus management

Contact Info

Product

Resources

About