Photorefractive keratectomy for patients with preoperative low Schirmer test value
Purpose: To compare dry eye signs and symptoms between patients with preoperative low and normal Schirmer test after Photorefractive keratectomy (PRK). Methods: In this prospective, nonrandomized, comparative case series, 76 eyes of 76 patients were preoperatively categorized into two groups accordi...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wolters Kluwer Medknow Publications
2016-12-01
|
| Series: | Journal of Current Ophthalmology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2452232516300282 |
| _version_ | 1818454578766544896 |
|---|---|
| author | Elham Tanbakouee Mohammad Ghoreishi Mohammad Aghazadeh-Amiri Mehdi Tabatabaee Mohadeseh Mohammadinia |
| author_facet | Elham Tanbakouee Mohammad Ghoreishi Mohammad Aghazadeh-Amiri Mehdi Tabatabaee Mohadeseh Mohammadinia |
| author_sort | Elham Tanbakouee |
| collection | DOAJ |
| description | Purpose: To compare dry eye signs and symptoms between patients with preoperative low and normal Schirmer test after Photorefractive keratectomy (PRK).
Methods: In this prospective, nonrandomized, comparative case series, 76 eyes of 76 patients were preoperatively categorized into two groups according to selected criteria for characterization of tear film status: the low Schirmer test value (STV) group and the normal STV group. For the tear function assessment, we performed a Schirmer test with and without anesthesia, tear break-up time (TBUT) test, and measurement dry eye symptoms using the Farsi translation of Ocular Surface Disease Index (OSDI) questionnaire pre- and 3 months post-operation.
Results: Postoperatively, the Schirmer and TBUT values were significantly lower in both groups than preoperatively (all p < 0.05). Deterioration in tear secretion was significantly greater in the low STV group (p = 0.012), but tear stability was more compromised in the normal STV group (p = 0.021). The changes in OSDI score were not significant between the two groups.
Conclusion: These results demonstrated that tear function deteriorates after PRK. Therefore, patients with low preoperative Schirmer test values should be thoroughly assessed for dry eye before proceeding with refractive surgery to eliminate postoperative complication. |
| first_indexed | 2024-12-14T21:57:07Z |
| format | Article |
| id | doaj.art-d7f75e8b23c64b08999e3454ac13a1f1 |
| institution | Directory Open Access Journal |
| issn | 2452-2325 |
| language | English |
| last_indexed | 2024-12-14T21:57:07Z |
| publishDate | 2016-12-01 |
| publisher | Wolters Kluwer Medknow Publications |
| record_format | Article |
| series | Journal of Current Ophthalmology |
| spelling | doaj.art-d7f75e8b23c64b08999e3454ac13a1f12022-12-21T22:46:05ZengWolters Kluwer Medknow PublicationsJournal of Current Ophthalmology2452-23252016-12-0128417618010.1016/j.joco.2016.06.002Photorefractive keratectomy for patients with preoperative low Schirmer test valueElham Tanbakouee0Mohammad Ghoreishi1Mohammad Aghazadeh-Amiri2Mehdi Tabatabaee3Mohadeseh Mohammadinia4Department of Optometry, School of Rehabilitation, Shahid Beheshti University of Medical Sciences, Tehran, IranOphthalmology Department, Isfahan University of Medical Sciences, Isfahan, IranDepartment of Optometry, School of Rehabilitation, Shahid Beheshti University of Medical Sciences, Tehran, IranDepartment of Basic Sciences, School of Rehabilitation, Shahid Beheshti University of Medical Sciences, Tehran, IranResearch and Development Department, Persian Eye Clinic, Isfahan, IranPurpose: To compare dry eye signs and symptoms between patients with preoperative low and normal Schirmer test after Photorefractive keratectomy (PRK). Methods: In this prospective, nonrandomized, comparative case series, 76 eyes of 76 patients were preoperatively categorized into two groups according to selected criteria for characterization of tear film status: the low Schirmer test value (STV) group and the normal STV group. For the tear function assessment, we performed a Schirmer test with and without anesthesia, tear break-up time (TBUT) test, and measurement dry eye symptoms using the Farsi translation of Ocular Surface Disease Index (OSDI) questionnaire pre- and 3 months post-operation. Results: Postoperatively, the Schirmer and TBUT values were significantly lower in both groups than preoperatively (all p < 0.05). Deterioration in tear secretion was significantly greater in the low STV group (p = 0.012), but tear stability was more compromised in the normal STV group (p = 0.021). The changes in OSDI score were not significant between the two groups. Conclusion: These results demonstrated that tear function deteriorates after PRK. Therefore, patients with low preoperative Schirmer test values should be thoroughly assessed for dry eye before proceeding with refractive surgery to eliminate postoperative complication.http://www.sciencedirect.com/science/article/pii/S2452232516300282Schirmer testPhotorefractive keratectomyTear function |
| spellingShingle | Elham Tanbakouee Mohammad Ghoreishi Mohammad Aghazadeh-Amiri Mehdi Tabatabaee Mohadeseh Mohammadinia Photorefractive keratectomy for patients with preoperative low Schirmer test value Journal of Current Ophthalmology Schirmer test Photorefractive keratectomy Tear function |
| title | Photorefractive keratectomy for patients with preoperative low Schirmer test value |
| title_full | Photorefractive keratectomy for patients with preoperative low Schirmer test value |
| title_fullStr | Photorefractive keratectomy for patients with preoperative low Schirmer test value |
| title_full_unstemmed | Photorefractive keratectomy for patients with preoperative low Schirmer test value |
| title_short | Photorefractive keratectomy for patients with preoperative low Schirmer test value |
| title_sort | photorefractive keratectomy for patients with preoperative low schirmer test value |
| topic | Schirmer test Photorefractive keratectomy Tear function |
| url | http://www.sciencedirect.com/science/article/pii/S2452232516300282 |
| work_keys_str_mv | AT elhamtanbakouee photorefractivekeratectomyforpatientswithpreoperativelowschirmertestvalue AT mohammadghoreishi photorefractivekeratectomyforpatientswithpreoperativelowschirmertestvalue AT mohammadaghazadehamiri photorefractivekeratectomyforpatientswithpreoperativelowschirmertestvalue AT mehditabatabaee photorefractivekeratectomyforpatientswithpreoperativelowschirmertestvalue AT mohadesehmohammadinia photorefractivekeratectomyforpatientswithpreoperativelowschirmertestvalue |