Table 1.

Characteristics of KC patients.

aKC	Gender	Age at diagnosis (yrs.)	Age at surgery (yrs.)	Contact lenses (Y or N)	History of allergy and/or atopy (Y or N)	bDALK (Y or N)
1	F	24	32	Y	N	N
2	F	23	30	N	Y asthma	Y
3	F	30	37	N	N	Y
4	M	27	32	N	Y atopy and asthma	N
5	M	25	32	N	N	Y
6	F	18	21	N	Y atopy and asthma	N
7	M	24	28	Y	N	N
8	M	24	43	Y	N	N
9	F	20	31	Y	N	N
10	F	32	38	Y	N	Y

^aGrade 4 KC: severe; VA >6/7.5 with contact lens correction; severe corneal thinning and Munson's sign.

^bDALK: deep anterior lamellar keratoplasty.