Evaluation of the Pterygium Size on the Corneal Astigmatism Pre and Post Excision
Creators
- 1. Associate Professor, Department of Ophthalmology, GMERS Medical College, Himmatnagar, Gujarat, India
Description
Background and Aim: Pterygium is a disorder in which the subconjunctival tissues proliferate as vascularized granulation tissue to invade the cornea, damaging the bowman’s membrane and the superficial layers of the stroma. The conjunctival epithelium covers the entire area. This study’s objective is to use keratometric readings from an automated keratorefractometery to assess how pterygium-induced astigmatism changes after pterygium removal. Material and Methods: The study comprised 104 patients who had been given a pterygium diagnosis in total. Before enrolment, a written agreement was obtained from each patient who met the eligibility requirements after being informed about the study. An automated keratorefractometer was used to obtain keratometric results. Calculating corneal astigmatism was done using the difference between K1 and K2. Results: According to the current study, the mean preoperative K1 value in the study group was 42.260.26 and decreased to 41.550.23 on the first postoperative day (P 0.001). A follow-up after one month revealed a statistically significant (P 0.001) decline in the mean K1 value to 40.310.23. According to the current study, the study group’s mean preoperative K2 value was 39.271.01 and increased to 40.070.52 on the first postoperative day. Conclusion: Pterygium has a significant impact on corneal refractive state, which has been assessed by effraction, keratometry, and corneal topography in numerous investigations. For the evaluation of corneal astigmatism brought on by pterygium, the total area and percentage of the pterygium’s expansion onto the cornea are crucial criteria. Early detection and treatment of pterygium reduces its deleterious impact on visual acuity.
Abstract (English)
Background and Aim: Pterygium is a disorder in which the subconjunctival tissues proliferate as vascularized granulation tissue to invade the cornea, damaging the bowman’s membrane and the superficial layers of the stroma. The conjunctival epithelium covers the entire area. This study’s objective is to use keratometric readings from an automated keratorefractometery to assess how pterygium-induced astigmatism changes after pterygium removal. Material and Methods: The study comprised 104 patients who had been given a pterygium diagnosis in total. Before enrolment, a written agreement was obtained from each patient who met the eligibility requirements after being informed about the study. An automated keratorefractometer was used to obtain keratometric results. Calculating corneal astigmatism was done using the difference between K1 and K2. Results: According to the current study, the mean preoperative K1 value in the study group was 42.260.26 and decreased to 41.550.23 on the first postoperative day (P 0.001). A follow-up after one month revealed a statistically significant (P 0.001) decline in the mean K1 value to 40.310.23. According to the current study, the study group’s mean preoperative K2 value was 39.271.01 and increased to 40.070.52 on the first postoperative day. Conclusion: Pterygium has a significant impact on corneal refractive state, which has been assessed by effraction, keratometry, and corneal topography in numerous investigations. For the evaluation of corneal astigmatism brought on by pterygium, the total area and percentage of the pterygium’s expansion onto the cornea are crucial criteria. Early detection and treatment of pterygium reduces its deleterious impact on visual acuity.
Files
IJPCR,Vol15,Issue1,Article2.pdf
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(294.7 kB)
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Additional details
Dates
- Accepted
-
2022-12-21
Software
- Repository URL
- https://impactfactor.org/PDF/IJPCR/15/IJPCR,Vol15,Issue1,Article2.pdf
- Development Status
- Active
References
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