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Cornea Free Papers
Laboratory results showed Pseudomonas aeruginosa in 7 cases (54%),
Staphylococcus aureus in 3 cases (25%) and Staphylococcus epidermidis in 2
cases (17%) with one case of viral keratitis. In 62% of cases size of ulcer was
≥ 5 X 5 mm and post treatment corrected visual acuity was 6/24 or less. All
patients responded well to the antimicrobial treatment, eliminating the need
of surgical intervention. Clinical details, culture and sensitivity results and
visual acuity are described in Table 2.
Table 2
Case Age Size of Organism Sensitivity Visual Final
No. (years) / ulcer isolated acuity on visual
gender (mm) presentation acuity
1 20/M 5.5X6 P. aeruginosa Moxifloxacin HM 6/18
2 15/F 3X4 S. aureus Amikacin 6/24 6/9
3 16/F 9X8.5 P. aeruginosa Cefotaxime HM HM
4 18/M 7X8 P. aeruginosa Moxifloxacin PR NA
5 19/M 1X2 P. aeruginosa Moxifloxacin 6/60 6/12
6 28/M 6X7.5 Culture negative CF ½ m CF ½ m
7 18/F 1X2 S. aureus Levofloxacin 6/6 6/6
8 25/M 7.5X8 S. epidermidis Moxifloxacin PR HM
9 16/M 5X4.5 P. aeruginosa Amikacin CFNF 6/24
10 21/F 2X3 S. aureus Moxifloxacin 6/9 6/6
11 15/F 5X5.5 P. aeruginosa Moxifloxacin 6/60 6/24
12 20/M 2X3 S. epidermidis Moxifloxacin 6/9 6/6
13 21/M 7X8 P. aeruginosa Levofloxacin PR 6/60
DISCUSSION
The link between microbial keratitis and contact lens wear is beyond question.
Use of contact lenses for therapeutic, refractive or cosmetic purpose will
target different classes of population. The colored cosmetic lenses are non
corrective (zero power or plano) lenses designed and worn solely to change
the appearance of the eye. Emmetropic patients who wear these lenses risk
serious ocular sequelae for the sake of cosmesis alone. In the current study, 13
young individuals developed sight threatening microbial keratitis following
the use of cosmetic contact lenses. As all the patients were from lower to lower
middle socieo-economic class, it points towards the dangerous trend evolving
in the youngsters of these classes. We found that unsterile lens handling and
infrequent change of storage solutions were the two major causes for the
development of infectious keratitis.
Eleven out of 13 patients were using these lenses for the first time. None of
the patient was following sterile contact lens handling or storage technique.
The lenses were stored in a contact lens case with solution or unpreserved
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