Refractive changes in nuclear, cortical and posterior subcapsular cataracts. Effect of the type and grade
Purpose: To determine the effect of main morphological types and grades of age-related cataracts on refractive error. Methods: We measured 276 subjects with optical compensation prior to the development of cataract. We evaluated 224 eyes with nuclear cataract, 125 with cortical cataract, and 103 wit...
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| Format: | Article |
| Language: | English |
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Elsevier
2015-04-01
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| Series: | Journal of Optometry |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1888429614000697 |
| _version_ | 1818334977426718720 |
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| author | Ma Amparo Díez Ajenjo Ma Carmen García Domene Cristina Peris Martínez |
| author_facet | Ma Amparo Díez Ajenjo Ma Carmen García Domene Cristina Peris Martínez |
| author_sort | Ma Amparo Díez Ajenjo |
| collection | DOAJ |
| description | Purpose: To determine the effect of main morphological types and grades of age-related cataracts on refractive error.
Methods: We measured 276 subjects with optical compensation prior to the development of cataract. We evaluated 224 eyes with nuclear cataract, 125 with cortical cataract, and 103 with posterior subcapsular (PSC) cataract classified with LOCSIII. We measured visual acuity (VA) with their spectacles and best-corrected visual acuity (BCVA) with chart in decimal scale to obtain the optimal compensation with cataract. We evaluated the differences between compensations.
Results: A significant myopic shift was observed in nuclear cataract from low to mild grade (p = 0.031), the same as for PSC cataract from mild to advanced grade (p = 0.025). No significant changes were found for cortical cataract (p = 0.462). Regarding astigmatism, we observed power changes in cortical cataract from low to mild grade (p = 0.03) and axis changes in PSC from low to mild grade (p = 0.02) and in nuclear cataract from mild to advanced grade (p = 0.02).
Conclusions: Cataract produces changes in patient's compensation which depend on severity and type of cataract. For nuclear and PSC cataract, we observed that the higher the grade of severity, the greater the myopic shift. Power astigmatic changes were found in cortical cataract and axis changes in PSC and nuclear cataract. |
| first_indexed | 2024-12-13T14:16:06Z |
| format | Article |
| id | doaj.art-9a1f551bf22b4624a199e0d37299ef9a |
| institution | Directory Open Access Journal |
| issn | 1888-4296 |
| language | English |
| last_indexed | 2024-12-13T14:16:06Z |
| publishDate | 2015-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Optometry |
| spelling | doaj.art-9a1f551bf22b4624a199e0d37299ef9a2022-12-21T23:42:17ZengElsevierJournal of Optometry1888-42962015-04-0182869210.1016/j.optom.2014.07.006Refractive changes in nuclear, cortical and posterior subcapsular cataracts. Effect of the type and gradeMa Amparo Díez Ajenjo0Ma Carmen García Domene1Cristina Peris Martínez2Fundación Oftalmológica del Mediterráneo (FOM), Bifurcación Pío Baroja-General Avilés, s/n, E46015 Valencia, SpainFundación Oftalmológica del Mediterráneo (FOM), Bifurcación Pío Baroja-General Avilés, s/n, E46015 Valencia, SpainFundación Oftalmológica del Mediterráneo (FOM), Bifurcación Pío Baroja-General Avilés, s/n, E46015 Valencia, SpainPurpose: To determine the effect of main morphological types and grades of age-related cataracts on refractive error. Methods: We measured 276 subjects with optical compensation prior to the development of cataract. We evaluated 224 eyes with nuclear cataract, 125 with cortical cataract, and 103 with posterior subcapsular (PSC) cataract classified with LOCSIII. We measured visual acuity (VA) with their spectacles and best-corrected visual acuity (BCVA) with chart in decimal scale to obtain the optimal compensation with cataract. We evaluated the differences between compensations. Results: A significant myopic shift was observed in nuclear cataract from low to mild grade (p = 0.031), the same as for PSC cataract from mild to advanced grade (p = 0.025). No significant changes were found for cortical cataract (p = 0.462). Regarding astigmatism, we observed power changes in cortical cataract from low to mild grade (p = 0.03) and axis changes in PSC from low to mild grade (p = 0.02) and in nuclear cataract from mild to advanced grade (p = 0.02). Conclusions: Cataract produces changes in patient's compensation which depend on severity and type of cataract. For nuclear and PSC cataract, we observed that the higher the grade of severity, the greater the myopic shift. Power astigmatic changes were found in cortical cataract and axis changes in PSC and nuclear cataract.http://www.sciencedirect.com/science/article/pii/S1888429614000697CataractOptical compensationCorticalNuclearPosterior subcapsular |
| spellingShingle | Ma Amparo Díez Ajenjo Ma Carmen García Domene Cristina Peris Martínez Refractive changes in nuclear, cortical and posterior subcapsular cataracts. Effect of the type and grade Journal of Optometry Cataract Optical compensation Cortical Nuclear Posterior subcapsular |
| title | Refractive changes in nuclear, cortical and posterior subcapsular cataracts. Effect of the type and grade |
| title_full | Refractive changes in nuclear, cortical and posterior subcapsular cataracts. Effect of the type and grade |
| title_fullStr | Refractive changes in nuclear, cortical and posterior subcapsular cataracts. Effect of the type and grade |
| title_full_unstemmed | Refractive changes in nuclear, cortical and posterior subcapsular cataracts. Effect of the type and grade |
| title_short | Refractive changes in nuclear, cortical and posterior subcapsular cataracts. Effect of the type and grade |
| title_sort | refractive changes in nuclear cortical and posterior subcapsular cataracts effect of the type and grade |
| topic | Cataract Optical compensation Cortical Nuclear Posterior subcapsular |
| url | http://www.sciencedirect.com/science/article/pii/S1888429614000697 |
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