Indications for Intacs
1. Must be 21 years of age or older
2.progressive deterioration in vision not able to be improved with contact lenses or spectacles.
3.Clear central cornea
4.Central corneal thickness of 450 microns or more
5.corneal transplantation is the only other option.
Los Angeles keratoconus expert dr. Khanna advises other surgeons to follow these indications.
RESULTS: CLEK Study subjects had a mean age at baseline of 39.3+/-10.9 years. At study entry, 65% of the patients wore rigid contact lenses, and 14% reported a family history of the disease. Subjects exhibited a 7-year decrease in high- (2.03 letters) and low- (4.06 letters) contrast, best-corrected visual acuity, with 19% demonstrating decreases of 10 or more letters in high-contrast, best-corrected acuity and 31% of subjects demonstrating decreases of 10 or more letters in low-contrast, best-corrected acuity in at least one eye. Subjects exhibited an average 8-year increase in corneal curvature of 1.60D in the flat corneal meridian, with 24% demonstrating increases of 3.00D or more. The 8-year incidence of corneal scarring was 20%, with younger age, corneal staining, steeper baseline corneal curvature, contact lens wear, and poorer low-contrast visual acuity predictive of corneal scarring. Data from the National Eye Institute Visual Function Questionnaire suggest that the effect of keratoconus on vision-specific quality of life is disproportionate to its low prevalence and clinical severity.
This study is from Clek or the collaborative longitudinal evaluation of keratoconus. It came from college of optometry in Ohio.
RESULTS: There were no statistically significant differences among the 3 groups (M, HA, and HI) in race, history of atopic disease, family history of keratoconus, or rigid contact lens wear in the right and left eyes. At baseline, there were no significant differences among the 3 groups in high-contrast best-corrected visual acuity, low-contrast best-corrected visual acuity, or steep keratometric reading. Progression of keratoconus, as assessed by changes in these 3 continuous variables, was equal for the 3 groups. M had more corneal scarring than did HA or HI; however, there was no progression of scarring for any of the groups.
CONCLUSION: Keratoconus progressed in both men and women, aged 48-59 years; however, there were no differences among the groups in progression.
So what we learn her is that if you live in Los Angeles and suffer from keratoconus, there is still a chance of scarring even if you are in your fourties. You need to see Los Angeles cornea expert . Dr Khanna has offices in Beverly hills and west lake village and helps residents of Los Angeles with management of keratoconus.