&lt;p&gt;Biometric Parameters and Corneal Astigmatism: Differences Between Male and Female Eyes&lt;/p&gt;

Bernardo, Maddalena De; Zeppa, Lucio; Cornetta, Palmiro; Rosa, Nicola

doi:10.2147/opth.s219912

Cited by 16 publications

(47 citation statements)

References 35 publications

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“…However, there were statistically significant differences observed only in Lt CC. Multiple studies reported that females’ CC are steeper or higher than males’ [ 54 , 55 ]. The current study findings were in the same line as the earlier studies.…”

Section: Discussionmentioning

confidence: 99%

A Study Linking Axial Length, Corneal Curvature, and Eye Axis With Demographic Characteristics in the Emmetropic Eyes of Bangladeshi People

Benzir¹,

Afroze²,

Zahan³

et al. 2022

Cureus

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BackgroundAxial length (AL) and corneal curvature (CC) are one of the furthest critical parameters for optometry and oculoplastic surgery. These two variables are crucial in biometry for accurately measuring the power of the intraocular lens in cataract surgery. This research aimed to determine the association linking axial length and corneal curvature with demographic characteristics in emmetropic eyes of Bangladeshi people. MethodsThis descriptive cross-sectional research was carried out among 200 emmetropic eyes of Bangladeshi people attending the Department of Ophthalmology at Rajshahi Medical College, Bangladesh, with different eye conditions, between July 2017 and June 2018. Data was gathered by conducting person-to-person interviews, checking visual activity using the Snellen chart, and measuring corneal curvature using an autokeratometer and axial eyeball length using A-scan ultrasonography. ResultsA total of 200 attendances were studied, 90 males and 110 females. All were emmetropic. The age range was 21-52 years, and the highest contributors were in the 21-30-year age group. The association between right axial length and right corneal curvature shows a negative relation among both sexes. It was -0.61 (βcoefficient (β-coff)), and highly significant in females at -0.89 (β-coff). Additionally, the association between left axial length and left corneal curvature shows a negative relation of -0.65 (β-coff), which was again highly significant in females at -0.87 (β-coff). Both were not significant in males. There was no significant association linking axial length and eye axis in both sexes. The multivariate regression model was used to assess the p-value, and the regression model was adjusted by age. ConclusionOptical parametric measurement is a noninvasive diagnostic and assessment tool that might help in the actual measurement of intraocular lens implantation in cataract surgery and may also provide supplementary information to the researcher domain.

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Section: Discussionmentioning

confidence: 99%

A Study Linking Axial Length, Corneal Curvature, and Eye Axis With Demographic Characteristics in the Emmetropic Eyes of Bangladeshi People

Benzir¹,

Afroze²,

Zahan³

et al. 2022

Cureus

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“…Several papers have been published on the correlation between AL and CT in emmetropic and myopic patients, most of them showing AL to be inversely related to subfoveal CT 20 , 31 – 35 .…”

Section: Discussionmentioning

confidence: 99%

Choroidal structural evaluation in celiac disease

Bernardo

Battipaglia

Mascolo

et al. 2021

Sci Rep

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This observational case–control study assessed the differences in choroidal structure between patients with celiac disease and healthy subjects utilizing the choroidal vascularity index (CVI). Seventy-four celiac patients and 67 healthy subjects underwent a complete ophthalmological evaluation, axial length (AL) measurements and spectral-domain optical coherence tomography with enhanced depth imaging mode (EDI SD-OCT) evaluation. These images were binarized and choroidal vasculature was analyzed. Choroidal total subfoveal area (TSA), luminal subfoveal area (LSA), stromal subfoveal area (SSA), CVI and subfoveal choroidal thickness (CT) were measured. Furthermore, subfoveal CT, TSA, LSA, SSA, and CVI were also correlated with AL. A statistically significant difference was found between the two groups for TSA, LSA, SSA and subfoveal CT, but not for CVI. In celiac patients, a significant correlation was found between AL and TSA, LSA and SSA, but not with CVI. Similar findings were also noticed in the healthy subjects. Thus, celiac patients have a thicker choroid than healthy subjects, regardless of the AL, due to a proportional increase in both the vascular and stromal components, which does not alter the CVI.

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“…These two studies prove the safety of this procedure, even if the efficacy was not so high. However, we would like to point out that in such a long-term study the ageing process could induce changes over the years, such as modifications in the lens index due to nuclear sclerosis, in the keratometric values, in the axial length (AL), and all these factors should be considered [ 21 , 22 ].…”

Section: Discussionmentioning

confidence: 99%

Twenty-Year Follow-Up of Excimer Laser Photorefractive Keratectomy: A Retrospective Observational Study

et al. 2020

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Introduction: Photorefractive keratectomy (PRK) was introduced in the late 1980s to correct myopia. The purpose of this study was to assess its long-term efficacy and safety, analyzing patients with at least 20-year follow-up. Methods: This retrospective observational study was carried out on 85 eyes of 54 patients (33 females) that underwent PRK between 1991 and 1998 (mean age 32.62 ± 9.74, range 18-55 years). Both preoperatively and postoperatively, patients underwent a complete ophthalmological evaluation, including uncorrected and corrected distance visual acuity, slitlamp, intraocular pressure, dilated fundus, and corneal topographic examinations. The outcome assessment was made by comparing the preoperative refraction, as spherical equivalent, with the postoperative ones, taking into account the planned refractive correction. Safety and efficacy indices were also calculated. All the data were evaluated with a paired t test. Results: The mean attempted correction as spherical equivalent was-5.64 ± 3.01 D (range-1.00 to-15.00 D), while the mean achieved correction after 20 years was-4.30 ± 3.13 D (range-1.88 to-14.25 D), with a significant statistical difference (p \ 0.01).The mean expected refractive outcome was-0.27 ± 0.81 D (range-4.00 to ? 1.25 D). The mean difference between achieved and attempted treatment was 1.33 ± 1.92 D (range-4.25 to ? 6.25 D), with a significant difference (p \ 0.01).The safety index was 1.00 and the efficacy index was 0.63. Conclusion: The results provided by this study highlight that the procedure could be considered safe, with no long-term sight-threatening complications such as late ectasia or haze.

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<p>Biometric Parameters and Corneal Astigmatism: Differences Between Male and Female Eyes</p>

Cited by 16 publications

References 35 publications

A Study Linking Axial Length, Corneal Curvature, and Eye Axis With Demographic Characteristics in the Emmetropic Eyes of Bangladeshi People

A Study Linking Axial Length, Corneal Curvature, and Eye Axis With Demographic Characteristics in the Emmetropic Eyes of Bangladeshi People

Choroidal structural evaluation in celiac disease

Twenty-Year Follow-Up of Excimer Laser Photorefractive Keratectomy: A Retrospective Observational Study

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