The following are the orthoptic and refractive findings of three children 
with esotropia. What is the most likely diagnosis in each case?
 

a.   Patient 1 

• VA                                      R 6/36               L 6/6

• cover test                           right esotropia for D & N

• prism cover test                 40 prism dioptre base out for D

                                            50 prism dioptres base out for N
 
• ocular motility                     comitant deviation

• cylcoplegic refraction        +6.00D in R           +4.50D in L

b.  Patient 2

• VA                                        R 6/6                L6/6

• cover test                             right esophoria for D 

                                              right esotropia for N
 
• prism cover test                    5 dioptre base out for D

                                             30 dioptre base out for N
 
• ocular motility                       comitant deviation

• cycloplegic refraction         +1.00D in R          +1.25D in L 

c. Patient 3

• VA                                         R6/6                   L6/6

 
• cover test                             right esotropia for D

                                              right esophoria for N
 
• prism cover test                  20 dioptre base out for D

                                              5 dioptre base out for N
 
• ocular motility                       decreased right abduction

• cylcoplegic refraction           +1.00D in both eyes